Observing geometry for bistatic spotlight observations on 31 May 1994. These predictions were for observations starting at 15:31:50 SCET. For a surface target at (64.288N, 7.265E, 6058 km) both the plane angle and bistatic angle become zero, meaning that the target, the spacecraft, and the DSN antenna are perfectly aligned. The predictions account for light-time and refraction effects. ================================================================================================================================ Magellan Bistatic Radar Experiment JD = 2449503.500000 1994/05/31 SPOTLIGHT mode Target at 6058.000 km radius 64.288 deg N 7.265 deg E DSN Station Number 63 Run time: 1994/04/29 13:35:41 Magellan: jd= 2449504.1458333335000 Semi-major axis 6349.2785999999996 km Eccentricity 0.0192332000000 Inclination 95.7172759000000 deg 1.670581615494819D+00 rad Ascending Node 298.9557000000000 deg 5.217761282604411D+00 rad Arg Periapsis 140.4065200000000 deg 2.450556065267269D+00 rad Epoch 2449504.1012073033000 SCET Spacecraft Target-to-S/C Range Adj Adj Inc HGA Norm Norm Range to Adj Plane Bista DSS DSS (secs) Position (km) Vector (km) (km) Range Angle Deflect S-Bd X-Bd Earth Ref Ang Ang Ang Elev Azi X Y Z X Y Z (km) (deg) (deg) Signal Signal (km) (deg) (deg) (deg) (deg) (deg -------------------------------------------------------------------------------------------------------------------------------- 15:31:50 2240.-4788. 3574. 338. -922. -685. 1197. Inc Angle Too Large 15:32:00 2215.-4754. 3632. 313. -889. -627. 1132. Inc Angle Too Large 15:32:10 2190.-4720. 3689. 288. -855. -570. 1067. 1068. 74.86 0.148 0.660 0.031 197035011. 68.46 5.18 8.07 69.2-133.5 15:32:20 2164.-4686. 3746. 262. -820. -513. 1002. 1003. 73.66 0.131 0.673 0.036 197034905. 68.46 4.26 6.57 69.1-133.4 15:32:30 2138.-4650. 3802. 236. -785. -457. 938. 939. 72.31 0.117 0.685 0.042 197034798. 68.46 3.19 4.88 69.1-133.3 15:32:37 2120.-4625. 3841. 218. -760. -418. 894. 895. 71.25 0.109 0.694 0.046 197034724. 68.46 2.34 3.55 69.1-133.3 15:32:38 2117.-4622. 3846. 215. -756. -413. 888. 888. 71.10 0.109 0.695 0.047 197034713. 68.46 2.21 3.36 69.1-133.3 15:32:39 2114.-4618. 3852. 213. -752. -407. 882. 882. 70.94 0.108 0.696 0.047 197034703. 68.46 2.08 3.16 69.1-133.3 15:32:40 2112.-4615. 3857. 210. -749. -402. 875. 876. 70.78 0.106 0.697 0.048 197034692. 68.46 1.95 2.95 69.1-133.3 15:32:41 2109.-4611. 3863. 207. -745. -396. 869. 870. 70.61 0.104 0.698 0.049 197034681. 68.46 1.82 2.74 69.1-133.3 15:32:42 2107.-4607. 3868. 205. -742. -390. 863. 863. 70.44 0.102 0.699 0.049 197034671. 68.46 1.68 2.53 69.1-133.2 15:32:43 2104.-4604. 3874. 202. -738. -385. 857. 857. 70.28 0.102 0.701 0.050 197034660. 68.46 1.54 2.32 69.1-133.2 15:32:44 2101.-4600. 3880. 199. -734. -379. 850. 851. 70.11 0.102 0.702 0.051 197034649. 68.46 1.40 2.10 69.1-133.2 15:32:45 2099.-4596. 3885. 197. -731. -374. 844. 845. 69.93 0.101 0.703 0.051 197034639. 68.46 1.25 1.88 69.1-133.2 15:32:46 2096.-4593. 3891. 194. -727. -368. 838. 838. 69.76 0.098 0.704 0.052 197034628. 68.46 1.10 1.66 69.1-133.2 15:32:47 2093.-4589. 3896. 191. -723. -363. 832. 832. 69.58 0.097 0.705 0.053 197034617. 68.46 0.95 1.43 69.1-133.2 15:32:48 2091.-4585. 3902. 189. -720. -357. 825. 826. 69.40 0.095 0.706 0.053 197034607. 68.46 0.80 1.20 69.1-133.2 15:32:49 2088.-4582. 3907. 186. -716. -352. 819. 820. 69.22 0.095 0.707 0.054 197034596. 68.46 0.65 0.97 69.1-133.2 15:32:50 2085.-4578. 3913. 183. -712. -346. 813. 814. 69.03 0.096 0.708 0.055 197034585. 68.46 0.49 0.73 69.1-133.2 15:32:51 2083.-4574. 3918. 181. -709. -341. 807. 807. 68.84 0.094 0.710 0.056 197034575. 68.46 0.33 0.49 69.1-133.2 15:32:52 2080.-4571. 3924. 178. -705. -335. 801. 801. 68.65 0.091 0.711 0.056 197034564. 68.46 0.17 0.25 69.1-133.2 15:32:53 2077.-4567. 3929. 175. -701. -330. 795. 795. 68.46 0.090 0.712 0.057 197034553. 68.46 0.00 0.00 69.1-133.2 15:32:54 2075.-4563. 3935. 173. -698. -324. 789. 789. 68.27 0.089 0.713 0.058 197034543. 68.46 0.17 0.25 69.0-133.1 15:32:55 2072.-4560. 3940. 170. -694. -319. 782. 783. 68.07 0.090 0.714 0.058 197034532. 68.46 0.34 0.50 69.0-133.1 15:32:56 2069.-4556. 3945. 167. -690. -313. 776. 777. 67.87 0.088 0.715 0.059 197034521. 68.46 0.52 0.76 69.0-133.1 15:32:57 2067.-4552. 3951. 165. -687. -308. 770. 771. 67.66 0.086 0.716 0.060 197034511. 68.46 0.69 1.03 69.0-133.1 15:32:58 2064.-4549. 3956. 162. -683. -303. 764. 765. 67.46 0.085 0.717 0.061 197034500. 68.46 0.88 1.29 69.0-133.1 15:32:59 2061.-4545. 3962. 159. -679. -297. 758. 759. 67.25 0.084 0.718 0.061 197034489. 68.46 1.06 1.56 69.0-133.1 15:33:00 2059.-4541. 3967. 157. -675. -292. 752. 753. 67.04 0.085 0.719 0.062 197034479. 68.46 1.25 1.84 69.0-133.1 15:33:01 2056.-4537. 3973. 154. -672. -286. 746. 747. 66.82 0.083 0.720 0.063 197034468. 68.46 1.44 2.12 69.0-133.1 15:33:02 2053.-4534. 3978. 151. -668. -281. 740. 741. 66.60 0.081 0.721 0.064 197034458. 68.46 1.64 2.40 69.0-133.1 15:33:03 2051.-4530. 3984. 149. -664. -275. 734. 735. 66.38 0.080 0.722 0.065 197034447. 68.46 1.84 2.69 69.0-133.1 15:33:04 2048.-4526. 3989. 146. -660. -270. 728. 729. 66.16 0.080 0.723 0.065 197034436. 68.46 2.05 2.98 69.0-133.1 15:33:05 2045.-4522. 3994. 143. -657. -264. 722. 723. 65.93 0.080 0.724 0.066 197034426. 68.46 2.25 3.28 69.0-133.1 15:33:06 2042.-4519. 4000. 141. -653. -259. 716. 717. 65.70 0.077 0.725 0.067 197034415. 68.46 2.47 3.58 69.0-133.0 15:33:07 2040.-4515. 4005. 138. -649. -254. 710. 711. 65.46 0.076 0.726 0.068 197034404. 68.46 2.68 3.89 69.0-133.0 15:32:40 2112.-4615. 3857. 210. -749. -402. 875. 876. 70.78 0.106 0.697 0.048 197034692. 68.46 1.95 2.95 69.1-133.3 15:32:50 2085.-4578. 3913. 183. -712. -346. 813. 814. 69.03 0.096 0.708 0.055 197034585. 68.46 0.49 0.73 69.1-133.2 15:33:00 2059.-4541. 3967. 157. -675. -292. 752. 753. 67.04 0.085 0.719 0.062 197034479. 68.46 1.25 1.84 69.0-133.1 15:33:10 2032.-4503. 4022. 130. -638. -237. 693. 693. 64.74 0.074 0.730 0.070 197034372. 68.46 3.36 4.83 69.0-133.0 15:33:20 2004.-4465. 4075. 103. -600. -184. 635. 636. 62.09 0.066 0.739 0.078 197034266. 68.46 5.97 8.36 69.0-132.9 15:33:30 1977.-4427. 4128. 75. -561. -130. 581. 581. 59.02 0.058 0.748 0.087 197034159. 68.46 9.24 12.55 69.0-132.8 15:33:40 1949.-4387. 4181. 47. -522. -78. 530. 530. 55.48 0.049 0.757 0.095 197034053. 68.46 13.46 17.56 68.9-132.8 15:33:50 1921.-4348. 4233. 19. -482. -26. 483. 483. 51.48 0.042 0.764 0.104 197033946. 68.46 19.02 23.56 68.9-132.7 15:34:00 1893.-4307. 4285. -9. -441. 26. 442. 443. 47.11 0.036 0.771 0.111 197033840. 68.46 26.52 30.72 68.9-132.6 15:34:10 1864.-4266. 4336. -37. -401. 77. 410. 410. 42.73 0.031 0.776 0.118 197033733. 68.46 36.74 39.15 68.9-132.5 15:34:20 1836.-4225. 4387. -66. -359. 128. 387. 387. 39.08 0.027 0.780 0.123 197033627. 68.46 50.38 48.78 68.8-132.4 15:34:30 1807.-4183. 4437. -95. -317. 178. 376. 376. 37.20 0.025 0.781 0.125 197033520. 68.46 67.15 59.28 68.8-132.3 15:34:40 1778.-4140. 4486. -124. -275. 227. 377. 378. 37.89 0.026 0.781 0.124 197033414. 68.46 84.82 70.04 68.8-132.3 15:34:50 1748.-4097. 4535. -154. -232. 276. 392. 392. 40.91 0.030 0.778 0.120 197033307. 68.46 100.42 80.37 68.8-132.2 15:35:00 1719.-4054. 4583. -183. -188. 324. 417. 417. 45.26 0.034 0.773 0.114 197033201. 68.46 112.56 89.72 68.8-132.1 15:35:10 1689.-4010. 4631. -213. -144. 372. 452. 452. 49.95 0.042 0.767 0.107 197033094. 68.46 121.52 97.82 68.7-132.0 15:35:20 1659.-3965. 4678. -243. -99. 419. 495. 495. 54.41 0.049 0.759 0.098 197032988. 68.46 128.12 104.67 68.7-131.9 15:35:30 1628.-3920. 4724. -273. -54. 466. 543. 543. 58.39 0.058 0.750 0.088 197032881. 68.46 133.05 110.39 68.7-131.9 15:35:40 1598.-3874. 4770. -304. -9. 511. 595. 595. 61.86 0.069 0.740 0.079 197032775. 68.46 136.83 115.16 68.7-131.8 15:35:50 1567.-3828. 4816. -335. 37. 557. 651. 651. 64.85 0.080 0.729 0.070 197032668. 68.46 139.79 119.15 68.6-131.7 15:36:00 1536.-3782. 4860. -365. 84. 601. 709. 709. 67.42 0.091 0.717 0.061 197032562. 68.46 142.17 122.51 68.6-131.6 15:36:10 1505.-3735. 4904. -396. 131. 646. 769. 769. 69.63 0.105 0.705 0.052 197032455. 68.46 144.11 125.36 68.6-131.5 15:36:20 1474.-3687. 4948. -428. 179. 689. 830. 831. 71.55 0.121 0.691 0.045 197032349. 68.46 145.73 127.80 68.6-131.5 15:36:30 1443.-3639. 4991. -459. 226. 732. 893. 894. 73.21 0.139 0.677 0.038 197032242. 68.46 147.09 129.91 68.5-131.4 15:36:40 1411.-3591. 5033. -491. 275. 774. 957. 958. 74.66 0.158 0.663 0.031 197032136. 68.46 148.25 131.74 68.5-131.3 15:36:50 1379.-3542. 5075. -523. 324. 816. 1021. Inc Angle Too Large 15:37:00 1347.-3493. 5115. -555. 373. 857. 1087. Inc Angle Too Large