4660_Nereus Planning
We detected Nereus echoes (cw, ranging, and coarse imaging) at Arecibo in Dec. 2001.
We plan high-resolution imaging at Arecibo during Jan. 9-14 and at Goldstone during Jan. 15-29, to ensure thorough orientational coverage of the object.
The Goldstone tracks cover Nereus's 0.029-AU approach. This is its closest approach until 2060, so our experiment is critical.
Orbital and Physical Characteristics orbit type Apollo semimajor axis 1.490 AU eccentricity 0.360 inclination 1.424° perihelion dist. 0.953 AU aphelion dist. 2.026 AU abs. mag. (H) 18.2 mag diameter 0.7 to 1.5 km rotation period 15.1 +/- 1.2 h lightcurve amp. 0.9 mag spectral class unknown Nereus's 0.029-AU approach in Jan. 2002 is its closest until 2060.
Circular No. 3675 Central Bureau for Astronomical Telegrams INTERNATIONAL ASTRONOMICAL UNION Postal Address: Central Bureau for Astronomical Telegrams Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. TWX 710-320-6842 ASTROGRAM CAM Telephone 617-864-5758 ... 1982 DB Another fast-moving asteroidal object has been discovered by E. Helin with the 1.2-m Palomar Schmidt telescope. Positions are: 1982 UT R. A. (1950) Decl. Mag. Observer Feb. 28.45764 13 45 42.48 -18 20 07.8 16 Helin 28.49236 13 45 36.17 -18 19 48.1 " Mar. 4.43672 13 36.0 -17 40 16 Bowell E. Helin and E. Shoemaker (Palomar Observatory). Measurers: Helin and R. S. Dunbar. E. Bowell (Lowell Observatory, Anderson Mesa station). ... 1982 March 5 (3675) Brian G. Marsden
ARECIBO Duration Rotation Jan UTC AST RA Dec AU RunSNR (h) (°) 09 1846-2042 1446-1642 337 4 0.050 720 1.93 46 10 1840-2027 1440-1627 335 3 0.047 860 1.78 42 11 1825-2012 1425-1612 333 3 0.045 990 1.78 42 12 1819-1957 1419-1557 331 2 0.042 1100 1.63 39 13 1813-1933 1413-1533 328 1 0.040 1300 1.33 32 14 1807-1909 1407-1509 325 -0 0.038 1400 1.03 25 GOLDSTONE UTC PST 15 1730-2205 0930-1405 321 -1 0.036 100 4.58 109 18 1645-0005 0845-1605 308 -6 0.031 170 7.33 175 19 1630-2335 0830-1535 303 -8 0.030 190 7.08 169 20 1635-2300 0835-1500 298 -10 0.029 200 6.42 153 22 1530-2005 0730-1205 286 -13 0.029 210 4.58 109 23 1505-1950 0705-1150 280 -15 0.029 200 4.75 113 24 1445-1730 0645-0930 274 -16 0.030 190 2.75 66 25 1425-1855 0625-1055 268 -17 0.031 170 4.50 107 26 1405-1915 0605-1115 263 -18 0.032 150 5.17 123 27 1345-1910 0545-1110 258 -19 0.033 120 5.42 129 29 1315-1830 0515-1030 250 -20 0.037 88 5.25 125
2001 Dec 11, 01 10:49:47 AM For new solution #18, with 244 obs 1981-Sep-30 to 2001-Dec-10, 3-sigma uncertainties are: DATE Pointing S-band Dop Delay (") Hz (sec) ----------------- --------- ---------- ---------- 18-DEC-2001 00:00 1.467 < 1.000 0.002200 19-DEC-2001 00:00 1.559 < 1.000 0.002210 20-DEC-2001 00:00 1.658 < 1.000 0.002220 ----------------------------------------------------- 2002 Jan 03 With a single Doppler, two delays, and additional optical data now spanning 1981-Sep-30 to 2002-Jan-2, solution #24 has these 3-standard-deviation S-band uncertainties: DATE Pointing S-band Dop Delay (") Hz (sec) ----------------- --------- ---------- ---------- 8-JAN-2002 00:00 1.627 <1.000 0.000046 10-JAN-2002 00:00 1.860 <1.000 0.000067 12-JAN-2002 00:00 2.128 <1.000 0.000097 ----------------------------------------------------- 2002 Jan 10 Using the solution #26 Steve generated, with 277 optical obs from (Sep 30, 1981 to Jan 2, 2002), 3 delay and one Doppler, 3-sigma X-band uncertainties are shown below. OSOD/files have been established at Goldstone (intruder). DATE Pointing X-band Dop Delay (") Hz (sec) ----------------- --------- ---------- ---------- 8-JAN-2002 00:00 1.627 <1.000 0.000046 10-JAN-2002 00:00 1.337 <1.000 0.000012 12-JAN-2002 00:00 1.522 <1.000 0.000023 14-JAN-2002 00:00 1.731 <1.000 0.000041 16-JAN-2002 00:00 1.954 <1.000 0.000068 18-JAN-2002 00:00 2.162 <1.000 0.000102 20-JAN-2002 00:00 2.289 <1.000 0.000143 22-JAN-2002 00:00 2.287 <1.000 0.000187 24-JAN-2002 00:00 2.166 <1.000 0.000225 26-JAN-2002 00:00 1.976 <1.000 0.000254 28-JAN-2002 00:00 1.796 <1.000 0.000273 30-JAN-2002 00:00 1.641 <1.000 0.000284 ----------------------------------------------------- With 282 optical observations spanning 30-SEP-1981 to 4-JAN-2002 5 delay and 2 Doppler, 4660 Nereus solution #30 was computed. 3-sigma X-band uncertainties are shown below. Files have been updated at Goldstone and Arecibo. Note TPM prediction error is one of the uncalibrated error sources not included in these uncertainty predictions. This is why Doppler error is sometimes replaced by "<1.000" Hz when it gets very small. Here I left it. DATE Pointing X-band Dop Delay (") Hz (sec) ----------------- --------- ---------- ---------- 8-JAN-2002 00:00 1.331 0.178 0.000040 10-JAN-2002 00:00 1.157 0.130 0.000012 12-JAN-2002 00:00 1.084 0.124 0.000004 14-JAN-2002 00:00 1.227 0.133 0.000013 16-JAN-2002 00:00 1.385 0.157 0.000027 18-JAN-2002 00:00 1.540 0.194 0.000045 20-JAN-2002 00:00 1.654 0.240 0.000066 22-JAN-2002 00:00 1.691 0.283 0.000089 24-JAN-2002 00:00 1.647 0.315 0.000110 26-JAN-2002 00:00 1.536 0.330 0.000127 28-JAN-2002 00:00 1.408 0.328 0.000138
We will start with solution 38 CW setup: TX polarization RCP RCV polarization LCP Frequencies: 2 Dwell: 15 seconds Bandwidth: 2000 Hz Sampling interval: 5000 x 0.1 usec VME FFT for PSD files: 4096 for 0.48828125-Hz resolution Possible ranging setups: --------------------------------------------------------------------------- 127 x 64 10-usec single sample baud 10 usec code 127 gates 127 FFT 64 CLT 11 ncoh 2 bandwidth 394 Hz resolution 6.15 Hz TXOFF TBD incoh sums 64 => 10.4 sec/record --------------------------------------------------------------------------- 127 x 64 11-usec single sample. baud 11 usec code 127 gates 127 PRP 1397 FFT 64 CLT 11 ncoh 2 bandwidth 357.9 Hz resolution 5.59 Hz TXOFF TBD ------------------------------------------------------------------------- 0.125-usec ranging setup JX1XS001 baud 0.125 usec code 127 gates 127 FFT 64 ncoh 1968 bandwidth 32.008 Hz resolution 0.5001 Hz TXOFF 6 Hz = 12 cells, => cell 44 incoh sums 4 looks=> 8 sec/record => expect records per run ~ RTT/8 CLT gate 34.8 _____________________________________________________________________ POSSIBLE RANGING SETUPS: (code=127, FFT=64, single-pol'n) These are from JX, w/ max-band (min-acc) options from Ray Jurgens. Currently configured for 5-sec records. _______________________________________________________________________ Setup Baud RP 1-acc 1-acc usec m usec band res acc band res _______________________________________________________________________ JX1XS110 11.000 1650 1397.0 715.8 11.2 2 358 5.6 JX1XS070 7.000 1050 889.0 1124.9 17.6 3 375 5.9 JX1XS020 2.000 300 254.0 3937.0 61.5 12 328 5.1 4 984 15.4 JX1XS010 1.000 150 127.0 7874.0 123.0 41 192 3.0 8 984 15.4 JX1XS005 0.500 75 63.5 15748.0 246.1 123 128 2.0 15 1050 16.4 JX1XS002 0.250 37.5 31.75 31496.1 492.1 492 64 1.0 30 1050 16.4 JX1XS001 0.125 18.75 15.875 62992.1 984.3 1970 32 0.5 60 1050 16.4 ____________________________________________________________________ RANGING SETUPS from Toutatis 1992: (code=255, FFT=256, 1 channel) ____________________________________________________________________ Setup Baud NACC bandwidth resolution 1/res'n nom Hz Hz sec gate ____________________________________________________________________ TU1XS01 0.125 123 255.06 0.9963 1.00 34 890 35.25 0.1377 7.26 1471 21.327 0.08331 12.00 2210 14.196 0.05545 18.03 2942 10.664 0.04166 24.01 3309 9.4810 0.03704 27.00 3700 8.4791 0.03312 30.19 7400 4.2395 0.01656 60.38 14800 2.1198 0.00828 120.77 TU1XS02 0.25 123 127.5 0.498 TU1XS04 0.500 307 25.5 0.100 TU1XS08 1.000 153 25.6 0.100 TU1XS16 2.000 4 490.2 1.915 TU1XS32 4.000 2 490.2 1.915 TU1XS33 4.125 2 475.3 1.857 TU1XS80 10.000 1 392.2 1.532 11 TU1XS88 11.000 1 356.5 1.393 11
For these observations, we need the following files: EPH.OUT.s38 (pointing predicts) PRDX.OUT.s38 PUNCH.OUT.s38 These files were created in: intruder:/data/osod/ops/4660_Nereus have been copied to: intruder:/d1/4660_Nereus/support/ POINTING January 15 TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2002 01 15 015 170000 321.9079 -1.2244 A 36.3 26 2002 01 15 015 180000 321.7483 -1.2795 A 36.2 2002 01 15 015 190000 321.5849 -1.3349 A 36.1 2002 01 15 015 200000 321.4182 -1.3905 A 0.0017 -0.0006 36.0 2002 01 15 015 210000 321.2493 -1.4463 A 35.9 2002 01 15 015 220000 321.0790 -1.5022 A 35.8 2002 01 15 015 230000 320.9084 -1.5584 A 35.8 January 18 TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2002 01 18 018 160000 309.2024 -5.7529 A 31.5 26 2002 01 18 018 170000 308.9876 -5.8265 A 31.4 2002 01 18 018 180000 308.7683 -5.9000 A 0.0019 -0.0007 31.4 2002 01 18 018 190000 308.5455 -5.9734 A B 31.3 2002 01 18 018 200000 308.3202 -6.0466 A B 31.2 2002 01 18 018 210000 308.0935 -6.1195 B 31.2 2002 01 18 018 220000 307.8667 -6.1920 B 0.0020 -0.0007 31.1 2002 01 18 018 230000 307.6408 -6.2643 B 31.1 2002 01 19 019 000000 307.4170 -6.3363 B 31.1 2002 01 19 019 010000 307.1961 -6.4082 B 31.0 January 19 TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2002 01 19 019 160000 304.0391 -7.5294 A 30.4 26 2002 01 19 019 170000 303.8050 -7.6070 A 30.3 2002 01 19 019 180000 303.5668 -7.6843 A 0.0020 -0.0006 30.3 2002 01 19 019 190000 303.3255 -7.7612 A 30.2 2002 01 19 019 200000 303.0821 -7.8376 AB 30.2 2002 01 19 019 210000 302.8379 -7.9135 B 30.1 2002 01 19 019 220000 302.5942 -7.9888 B 0.0020 -0.0006 30.1 2002 01 19 019 230000 302.3521 -8.0636 B 30.1 2002 01 20 020 000000 302.1126 -8.1380 B 30.1 January 20 TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2002 01 20 020 160000 298.4875 -9.3671 A 29.5 26 2002 01 20 020 170000 298.2369 -9.4463 A 0.0021 -0.0006 29.5 2002 01 20 020 180000 297.9825 -9.5249 AB 29.5 2002 01 20 020 190000 297.7256 -9.6027 BC 0.0021 -0.0007 29.5 2002 01 20 020 200000 297.4673 -9.6798 BC 29.4 2002 01 20 020 210000 297.2089 -9.7561 C 0.0021 -0.0006 29.4 2002 01 20 020 220000 296.9518 -9.8315 C 29.4 2002 01 20 020 230000 296.6970 -9.9063 C 29.4 January 22 (CLOSEST APPROACH) TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2002 01 22 022 150000 286.8485 -12.8933 A 29.0 26 2002 01 22 022 160000 286.5826 -12.9675 A 0.0022 -0.0006 29.0 2002 01 22 022 170000 286.3133 -13.0407 AB 28.9 2002 01 22 022 180000 286.0417 -13.1126 B 0.0022 -0.0006 28.9 2002 01 22 022 190000 285.7691 -13.1832 BC 29.0 2002 01 22 022 200000 285.4967 -13.2525 C 0.0022 -0.0005 29.0 2002 01 22 022 210000 285.2260 -13.3204 C 29.0 January 23 TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2002 01 23 023 150000 280.7541 -14.5250 A 29.2 26 2002 01 23 023 160000 280.4876 -14.5922 A 0.0021 -0.0006 29.2 2002 01 23 023 170000 280.2184 -14.6581 AB 29.2 2002 01 23 023 180000 279.9477 -14.7225 B 0.0022 -0.0005 29.2 2002 01 23 023 190000 279.6769 -14.7853 BC 29.2 2002 01 23 023 200000 279.4073 -14.8465 C 0.0022 -0.0005 29.2 2002 01 23 023 210000 279.1401 -14.9063 C 29.3 January 24 TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2002 01 24 024 140000 275.0105 -15.9081 A 29.7 26 2002 01 24 024 150000 274.7526 -15.9676 A 29.7 2002 01 24 024 160000 274.4918 -16.0259 A 0.0022 -0.0005 29.7 2002 01 24 024 170000 274.2291 -16.0826 A 29.8 2002 01 24 024 180000 273.9658 -16.1377 A 29.8 January 25 TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2002 01 25 025 140000 269.2255 -17.1417 A 30.6 26 2002 01 25 025 150000 268.9782 -17.1917 A 30.6 2002 01 25 025 160000 268.7286 -17.2402 A 30.6 2002 01 25 025 170000 268.4779 -17.2870 A 0.0021 -0.0004 30.7 2002 01 25 025 180000 268.2273 -17.3321 A 30.7 2002 01 25 025 190000 267.9783 -17.3754 A 30.8 2002 01 25 025 200000 267.7318 -17.4172 A 30.8 January 26 TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2002 01 26 026 140000 263.7688 -18.1513 A 31.7 26 2002 01 26 026 150000 263.5360 -18.1917 A 31.8 2002 01 26 026 160000 263.3017 -18.2306 A 31.8 2002 01 26 026 170000 263.0669 -18.2678 A 0.0020 -0.0003 31.9 2002 01 26 026 180000 262.8330 -18.3032 A 31.9 2002 01 26 026 190000 262.6011 -18.3369 A 32.0 2002 01 26 026 200000 262.3724 -18.3691 A 32.0 January 27 TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2002 01 27 027 130000 258.9239 -18.9169 A 33.1 26 2002 01 27 027 140000 258.7103 -18.9499 A 33.1 2002 01 27 027 150000 258.4946 -18.9816 A 33.2 2002 01 27 027 160000 258.2780 -19.0117 A 0.0020 -0.0003 33.2 2002 01 27 027 170000 258.0615 -19.0402 A 33.3 2002 01 27 027 180000 257.8463 -19.0669 A 33.4 2002 01 27 027 190000 257.6337 -19.0921 A 33.4 January 29 TX Offsets Date (UTC) DOY hhmmss RA Dec Macro LHA Dec RTT OSOD 2002 01 29 029 130000 250.0728 -20.0016 A 36.5 26 2002 01 29 029 140000 249.8946 -20.0208 A 36.5 2002 01 29 029 150000 249.7151 -20.0387 A 36.6 2002 01 29 029 160000 249.5356 -20.0551 A 0.0019 -0.0001 36.7 2002 01 29 029 170000 249.3570 -20.0699 A 36.8 2002 01 29 029 180000 249.1804 -20.0833 A 36.9 2002 01 29 029 190000 249.0067 -20.0955 A 37.0 PRDX (DELAY-DOPPLER EPHEMERIDES) PRDX.OUT.s38 TRANSMITTER: STATION #14, RECEIVER: STATION #14 RECEIVER U.T. RANGE DOPPLER LHA DEC RA EL 2002 JAN 29 13:10 36.4854519761 -173854.811 319.1753 -20.0048 250.043 22.403 2002 JAN 29 13:20 36.4976662712 -174664.016 321.7118 -20.0080 250.014 23.745 2002 JAN 29 13:30 36.5099381633 -175498.073 324.2483 -20.0112 249.984 25.026 2002 JAN 29 13:40 36.5222693525 -176355.556 326.7849 -20.0144 249.954 26.243 2002 JAN 29 13:50 36.5346614220 -177234.992 329.3215 -20.0176 249.924 27.391 2002 JAN 29 14:00 36.5471158576 -178134.866 331.8582 -20.0207 249.895 28.468 2002 JAN 29 14:10 36.5596340379 -179053.621 334.3949 -20.0238 249.865 29.468 2002 JAN 29 14:20 36.5722172384 -179989.664 336.9316 -20.0268 249.835 30.389 2002 JAN 29 14:30 36.5848665987 -180941.366 339.4684 -20.0298 249.805 31.226 2002 JAN 29 14:40 36.5975831739 -181907.068 342.0051 -20.0328 249.775 31.975 2002 JAN 29 14:50 36.6103678789 -182885.083 344.5419 -20.0357 249.745 32.634 2002 JAN 29 15:00 36.6232215167 -183873.699 347.0787 -20.0386 249.715 33.198 2002 JAN 29 15:10 36.6361447780 -184871.185 349.6155 -20.0414 249.685 33.665 2002 JAN 29 15:20 36.6491382074 -185875.791 352.1523 -20.0442 249.655 34.033 2002 JAN 29 15:30 36.6622022579 -186885.751 354.6891 -20.0469 249.625 34.299 2002 JAN 29 15:40 36.6753372273 -187899.291 357.2258 -20.0497 249.595 34.462 2002 JAN 29 15:50 36.6885433194 -188914.629 359.7626 -20.0523 249.565 34.521 2002 JAN 29 16:00 36.7018205901 -189929.979 2.2993 -20.0549 249.536 34.476 2002 JAN 29 16:10 36.7151689776 -190943.556 4.8360 -20.0575 249.506 34.327 2002 JAN 29 16:20 36.7285882949 -191953.575 7.3727 -20.0601 249.476 34.075 2002 JAN 29 16:30 36.7420782305 -192958.263 9.9093 -20.0626 249.446 33.721 2002 JAN 29 16:40 36.7556383565 -193955.853 12.4459 -20.0650 249.416 33.268 2002 JAN 29 16:50 36.7692680982 -194944.595 14.9825 -20.0674 249.387 32.716 2002 JAN 29 17:00 36.7829667901 -195922.754 17.5190 -20.0698 249.357 32.071 2002 JAN 29 17:10 36.7967336225 -196888.618 20.0554 -20.0721 249.327 31.334 2002 JAN 29 17:20 36.8105676739 -197840.497 22.5918 -20.0744 249.298 30.509 2002 JAN 29 17:30 36.8244679057 -198776.730 25.1281 -20.0767 249.268 29.600 2002 JAN 29 17:40 36.8384331638 -199695.686 27.6644 -20.0789 249.239 28.610 2002 JAN 29 17:50 36.8524621886 -200595.769 30.2006 -20.0811 249.210 27.544 2002 JAN 29 18:00 36.8665535945 -201475.419 32.7367 -20.0832 249.180 26.405 2002 JAN 29 18:10 36.8807058956 -202333.117 35.2727 -20.0853 249.151 25.198 2002 JAN 29 18:20 36.8949175010 -203167.386 37.8086 -20.0874 249.122 23.926 2002 JAN 29 18:30 36.9091867180 -203976.796 40.3445 -20.0894 249.093 22.592
Arecibo TX windows' phase coverage Rotation Phase 0 90 180 270 360 Jan | | | | | 9 ..........................######..... 9 10 ...........######.................... 10 11 ###..............................#### 11 12 ..................######............. 12 13 ...######............................ 13
ARECIBO MASTERLOG Last updated: 2005 May 03 Comment from Benner 070828: The dimensions of the Arecibo images are all 81 rows x 81 columns, where each image has a resolution of 0.1 usec x 0.0143 Hz (except for Dec. 20, which has a resolution of 0.5 usec x 0.03 Hz) Date Setup Runs OSOD TXoff AST UTC ---------------------------------------------------------------------------- Dec 18 RI cw 5 kHz 3 18 +200 172232-173249 212232-213249 RI 1023x4 1 18 173853-174035 213853-214035 RI 8191x4 1 18 174252-174434 214252-214434 datafile.18dec01.r1541.2 has cw data but was cabled for 4.0 us 1023 code --> NO GOOD -------------------------------------------------------------------------- Dec 19 CBR 16383x0.5 3 18 +2 191234-192316 231234-232316 -------------------------------------------------------------------------- Dec 20 CBR 65535x0.5 11 18 +2 184149-191805 224149-231805 handwritten log sheet indicates the RI and GIO were used (written from memory by Mike Nolan on 2002 Jan. 2) Dec 20 0.5 usec x 0.03 Hz 7-run sum -------------------------------------------------------------------------- Jan 09 RI 8191x4 1 24 +2 144604-144647 184604-184647 RI 1023x4 1 24 +2 144903-144946 184903-184946 RI cw 5 kHz 16 24 +200 145245-152207 185245-192207 RI cw 5 kHz 1 26 +200 152532-152616 192532-192616 CBR 65535x0.1 37 26 +5 152749-163531 192749-203531 Jan 09 CW 5-run sum Jan 09 0.1 usec x 0.014 Hz collage -------------------------------------------------------------------------- Jan 10 RI cw 5 kHz 5 26 +200 144846-145600 184846-185600 CBR 65535x0.1 51 26 +5 145904-162126 185904-202126 Jan 10 CW 5-run sum Jan 10 0.1 usec x 0.014 Hz collage -------------------------------------------------------------------------- Jan 11 RI cw 5 kHz 5 26 +200 142732-143419 182732-183419 CBR 65535x0.1 58 26 +5 143616-160419 183616-200419 Jan 11 CW 5-run sum Jan 11 0.1 usec x 0.014 Hz collage -------------------------------------------------------------------------- Jan 12 RI cw 5 kHz 5 30 +200 142129-142758 182129-182758 CBR cw 5 kHz 8 30 +200 143544-144805 183544-184805 CBR 65535x0.1 38 30 +5 144957-154450 184957-194450 Jan 12 CW 5-run sum For the second set of CW observation on January 12, the CBR was running but coding was not turned on. Jan 12 0.1 usec x 0.014 Hz collage -------------------------------------------------------------------------- Jan 13 RI cw 5 kHz 5 30 +200 141143-141754 181143-181754 CBR 65535x0.1 16 30 +5 141951-144126 181951-184126 Jan 13 CW 5-run sum Jan 13 0.1 usec x 0.014 Hz collage --------------------------------------------------------------------------
GOLDSTONE MASTERLOG RCV file setup runs start -stop osod OFFSET TX Poln --------------------------------------------------------------------------------------------------- January 15 (DOY 015) PSD02015RCP.4660_Nereus, VOLT02015RCP.4660_Nereus CW 2 kHz 4096 FFT 10 173321-174504 30 none RCP PSD02015LCP.4660_Nereus, VOLT02015LCP.4660_Nereus CW 2 kHz 4096 FFT 10 174711-175855 30 none LCP ne01503 10 us x 6.15 Hz 127 code 5 181717-181955 30 +30 RCP ne01506 1 us x 3.0 Hz 127 code 3 183207-183513 30 +30 RCP 465 kW ne01509 1/8 us x 1/4 Hz 127 code 12 190228-191753 30 +8 RCP 452 kW ne01510 1/8 us x 1/4 Hz 127 code 16 193214-195257 32 +8 RCP also sampling w/PFS ne01511 1/8 us x 1/4 Hz 127 code 7 195843-200722 32 +8 RCP sample w/vax only ne01512 1/8 us x 1/4 Hz 127 code 4 203842-204319 32 +8 RCP NO ECHOES PFS 1/8 us x 1/4 Hz 127 code 14 213634-214518 30/32 +8 RCP PO soln 32; PFS soln 30 PFS 1/8 us x 1/4 Hz 127 code 15 214707-220502 30 +8 RCP PO soln 30; PFS soln 30 Jan. 15 Goldstone CW spectrum: Transmit RCP Jan. 15 Goldstone CW spectrum: Transmit LCP Jan. 15 Goldstone images January 18 (DOY 018) PSD02018.4660_Nereus, VOLT02018.4660_Nereus CW 2 kHz 4096 FFT 10 165836-170845 32 none RCP same file,15 s dwell CW 2 kHz 4096 FFT 10 171301-172310 32 none RCP same file,10 s dwell CW 2 kHz 4096 FFT 10 172831-173841 32 none LCP same file,10 s dwell PFS 1/8 us 127 code 49 183025-192217 32 +8 RCP ne01803 1 us x 3.0 Hz 127 code 4 193006-193357 32 +30 RCP ne01806 1/8 us x 1/4 Hz 127 code 53 194956-204848 32 +8 RCP ne01807 1/8 us x 1/4 Hz 127 code 54 211746-221803 32 +8 RCP ne01808 1/8 us x 1/4 Hz 127 code 54 222329-232336 32 +8 RCP ne01809 1/8 us x 1/4 Hz 127 code 35 232444-000519 32 +8 RCP Jan. 18 Goldstone CW spectrum: Transmit RCP Jan. 18 Goldstone CW spectrum: Transmit LCP Jan. 18 Goldstone images January 19 (DOY 019) ne01903 1 us x 3.0 Hz 127 code 4 170248-170629 34 +30 RCP ne01906 1/8 us x 1/8 Hz 127 code 53 172257-182213 34 +8 RCP ne01907 1/8 us x 1/8 Hz 127 code 53 183239-193510 34 +8 RCP ne01908 1/8 us x 1/8 Hz 127 code 53 193937-203847 34 +8 RCP ne01909 1/8 us x 1/8 Hz 127 code 37 204933-213046 34 +8 RCP STRONG RFI ne01910 1/8 us x 1/8 Hz 127 code 23 213614-220126 34 +8 RCP ne01911 1/8 us x 1/8 Hz 127 code 44 221207-230019 34 +8 RCP PSD02019RCP.4660_Nereus, VOLT02019RCP.4660_Nereus CW 2 kHz 4096 FFT 10 230840-231932 34 none RCP PSD02019RCP.4660_Nereus, VOLT02019RCP.4660_Nereus CW 2 kHz 4096 FFT 10 232344-233330 34 none LCP Jan. 19 Goldstone CW spectrum: Transmit RCP Jan. 19 Goldstone CW spectrum: Transmit LCP Jan. 19 Goldstone images January 20 (DOY 020) PSD02020RCP.4660_Nereus, VOLT02020RCP.4660_Nereus CW 2 kHz 4096 FFT 10 170554-171544 36 none RCP PSD02020LCP.4660_Nereus, VOLT02020LCP.4660_Nereus CW 2 kHz 4096 FFT 10 171819-172809 36 none LCP ne02003 1 us x 3.0 Hz 127 code 5 174647-175136 36 +30 RCP ne02006 1/8 us x 1/8 Hz 127 code 52 185417-195234 36 +8 RCP ne02007 1/8 us x 1/8 Hz 127 code 50 200137-205722 36 +8 RCP ne02008 1/8 us x 1/8 Hz 127 code 50 211421-221014 36 +8 RCP ne02009 1/8 us x 1/8 Hz 127 code 42 221236-225949 36 +8 RCP Jan. 20 Goldstone CW spectrum: Transmit RCP Jan. 20 Goldstone CW spectrum: Transmit LCP Jan. 20 Goldstone images January 22 (DOY 022) PSD02022RCP.4660_Nereus, VOLT02022RCP.4660_Nereus CW 2 kHz 4096 FFT 10 165724-170655 36 none RCP PSD02022LCP.4660_Nereus, VOLT02022LCP.4660_Nereus CW 2 kHz 4096 FFT 10 170805-171736 36 none LCP PFS 1/8 us, 127 code 68 185639-200422 36 +8 RCP Jan. 22 Goldstone CW spectrum: Transmit RCP Jan. 22 Goldstone CW spectrum: Transmit LCP January 23 (DOY 023) PSD02023RCP.4660_Nereus, VOLT02023RCP.4660_Nereus CW 2 kHz 4096 FFT 10 150544-151515 36 none RCP PSD02023LCP.4660_Nereus, VOLT02023LCP.4660_Nereus CW 2 kHz 4096 FFT 10 151648-152618 36 none RCP ne02303 1 us x 3.0 Hz 127 code 5 153745-154225 36 +30 RCP ne02304 1/8 us x 1/8 Hz 127 code 50 154532-163719 36 +8 RCP ne02305 1/8 us x 1/8 Hz 127 code 50 164050-173327 36 +8 RCP ne02306a 1/8 us x 1/8 Hz 127 code 18 174108-175937 36 +8 RCP ne02309 1/8 us x 1/8 Hz 127 code 50 182901-192124 36 +8 RCP ne02310 1/8 us x 1/8 Hz 127 code 24 192534-195008 36 +8 RCP Jan. 23 Goldstone CW spectrum: Transmit RCP Jan. 23 Goldstone CW spectrum: Transmit LCP Jan. 23 Goldstone images January 24 (DOY 024) PSD02024.4660_Nereus, VOLT02024.4660_Nereus CW 2 kHz 4096 FFT 5 144542-145019 38 none RCP ne02403 1/8 us x 1/8 Hz 127 code 50 150626-160243 38 +8 RCP ne02404 1/8 us x 1/8 Hz 127 code 50 160625-170203 38 +8 RCP ne02405 1/8 us x 1/8 Hz 127 code 16 171212-172945 38 +8 RCP Jan. 24 Goldstone CW spectrum: Transmit RCP Jan. 24 Goldstone images January 25 (DOY 025) PSD02025.4660_Nereus, VOLT02025.4660_Nereus CW 2 kHz 4096 FFT 5 162119-162607 38 none RCP ne02503 1/8 us x 1/8 Hz 127 code 50 163712-173455 38 +8 RCP ne02504 1/8 us x 1/8 Hz 127 code 52 174320-184509 38 +8 RCP ne02505 1/8 us x 1/8 Hz 127 code 7 184754-185520 38 +8 RCP Jan. 25 Goldstone CW spectrum: Transmit RCP Jan. 25 Goldstone images January 26 (DOY 026) PSD02026.4660_Nereus, VOLT02026.4660_Nereus CW 2 kHz 4096 FFT 5 140539-141034 38 none RCP ne02603 1/8 us x 1/8 Hz 127 code 6 142109-142738 38 +8 RCP ne02603 1/8 us x 1/8 Hz 127 code 52 143514-153339 38 +8 RCP ne02604 1/8 us x 1/8 Hz 127 code 50 153744-163703 38 +8 RCP ne02605 1/8 us x 1/8 Hz 127 code 16 163929-165752 38 +8 RCP ne02606 1/8 us x 1/8 Hz 127 code 28 172508-175804 38 +8 RCP ne02607 1/8 us x 1/8 Hz 127 code 54 180945-191426 38 +8 RCP Jan. 26 Goldstone CW spectrum: Transmit RCP Jan. 26 Goldstone images January 27 (DOY 027) PSD02027.4660_Nereus, VOLT02027.4660_Nereus CW 2 kHz 4096 FFT 5 134544-135048 38 none RCP ne02704 1/8 us x 1/8 Hz 127 code 50 141301-151423 38 +8 RCP ne02705 1/8 us x 1/8 Hz 127 code 50 152536-162703 38 +8 RCP ne02706 1/8 us x 1/8 Hz 127 code 4 162929-163343 38 +8 RCP ne02707 1/8 us x 1/8 Hz 127 code 50 164433-174604 38 +8 RCP ne02708 1/8 us x 1/8 Hz 127 code 11 175445-180742 38 +8 RCP ne02709 1/8 us x 1/8 Hz 127 code 42 181750-190929 38 +8 RCP Jan. 27 Goldstone CW spectrum: Transmit RCP Jan. 27 Goldstone images January 29 (DOY 029) PSD02029RCP.4660_Nereus, VOLT02029RCP.4660_Nereus CW 2 kHz 4096 FFT 10 140638-141844 38 none RCP PSD02029LCP.4660_Nereus, VOLT02029LCP.4660_Nereus CW 2 kHz 4096 FFT 10 142039-143245 38 none RCP ne02903 1 us x 3.0 Hz 127 code 10 145946-151224 38 +30 RCP ne02906 1/8 us x 1/8 Hz 127 code 4 152151-152628 38 +8 RCP ne02907 1/8 us x 1/8 Hz 127 code 50 153000-163718 38 +8 Hz,+30 gates RCP ne02908 1/8 us x 1/8 Hz 127 code 46 163956-174622 38 +8 Hz,+30 gates RCP ne02909 1/8 us x 1/8 Hz 127 code 20 175830-182922 38 +8 Hz,+30 gates RCP Jan. 29 Goldstone CW spectrum: Transmit RCP Jan. 29 Goldstone CW spectrum: Transmit LCP Jan. 29 Goldstone images
Dr. Steven J. Ostro | PHONE: (818) 354-3173 300-233 | FAX: (818) 354-9476 Jet Propulsion Laboratory | email: ostro@echo.jpl.nasa.gov Pasadena, CA 91109-8099