This page summarizes Io observations collected during orbit C21.
| Observation ID | Time Range ↕ | Mean Center Lat (°) | Mean Center Lon (°) | Mean Altitude (km) | Mean Resolution (m/pixel) | Mean Phase Angle (°) | In Eclipse? | Filters Used |
|---|---|---|---|---|---|---|---|---|
| 21ISCOLOR_01 | 07/02/1999 04:00:20.752 – 07/02/1999 04:11:56.905 | 1.333 | 137.285 | 127453.7 | 2095.4 | 4.78 | No | GREEN, IR7560, RED, VIOLET |
| 21ISALBEDO03 | 07/02/1999 05:20:33.744 – 07/02/1999 05:20:42.412 | 13.372 | 193.734 | 125259.2 | 1252.6 | 7.6 | No | IR8890, IR9680 |
| 21ISSTEREO01 | 07/02/1999 08:18:39.543 – 07/02/1999 08:19:48.878 | -11.876 | 164.669 | 142252.0 | 1422.5 | 22.52 | No | CLEAR |
| 21ISIOPLUM01 | 07/02/1999 11:01:00.138 – 07/02/1999 11:02:24.137 | -3.905 | 218.776 | 183797.2 | 3675.9 | 25.95 | No | VIOLET |
| 21ISIOPLUM03 | 07/02/1999 14:09:04.130 – 07/02/1999 14:10:28.130 | 6.665 | 258.766 | 274160.4 | 5483.2 | 25.57 | No | VIOLET |
| 21ISIOPLUM04 | 07/02/1999 14:43:26.796 – 07/02/1999 14:43:26.796 | 0.496 | 198.575 | 294722.2 | 5894.4 | 25.41 | No | VIOLET |
| 21ISIOPLUM05 | 07/02/1999 15:50:10.793 – 07/02/1999 15:50:10.793 | 0.443 | 207.405 | 343018.8 | 6860.4 | 26.02 | No | VIOLET |
| 21ISIOPLUM06 | 07/02/1999 17:13:10.125 – 07/02/1999 17:13:10.125 | 0.383 | 217.741 | 412373.2 | 8247.5 | 27.41 | No | VIOLET |
| 21ISIOPLUM07 | 07/02/1999 18:34:59.455 – 07/02/1999 18:34:59.455 | 0.333 | 227.298 | 490145.0 | 9802.9 | 29.4 | No | VIOLET |
| 21ISIOPLUM08 | 07/02/1999 20:04:58.609 – 07/02/1999 20:05:03.451 | 0.286 | 237.218 | 585330.0 | 11706.6 | 32.19 | No | GREEN, RED, VIOLET |
| 21ISIOPLUM09 | 07/02/1999 21:34:58.115 – 07/02/1999 21:34:58.115 | 0.248 | 246.648 | 689034.1 | 13780.7 | 35.46 | No | VIOLET |
| 21ISIOPLUM10 | 07/02/1999 23:05:30.111 – 07/02/1999 23:05:30.111 | 0.216 | 255.784 | 800417.6 | 8004.2 | 39.1 | No | VIOLET |
| 21ISIOPLUM11 | 07/03/1999 01:05:49.440 – 07/03/1999 01:05:49.440 | 0.183 | 267.544 | 956252.3 | 9562.5 | 44.32 | No | VIOLET |
| 21ISIOPLUM12 | 07/03/1999 02:35:48.771 – 07/03/1999 02:35:48.771 | 0.163 | 276.152 | 1076230.2 | 10762.3 | 48.41 | No | VIOLET |
| 21ISIOPLUM13 | 07/03/1999 04:26:01.434 – 07/03/1999 04:26:01.434 | 0.143 | 286.564 | 1224129.5 | 12241.3 | 53.55 | No | VIOLET |
| 21ISIOPLUM14 | 07/03/1999 06:46:16.625 – 07/03/1999 06:46:37.029 | 0.122 | 299.734 | 1408931.0 | 14089.3 | 60.19 | Yes | CLEAR, IR9680 |
| 21ISNACLD_01 | 07/03/1999 07:46:48.557 – 07/03/1999 07:47:49.222 | 0.115 | 305.436 | 1486142.1 | 14861.4 | 63.08 | Yes | CLEAR, GREEN |
| 21ISNACLD_02 | 07/03/1999 07:53:53.222 – 07/03/1999 07:53:53.222 | 0.115 | 306.052 | 1494336.0 | 14943.4 | 63.39 | Yes | CLEAR |
| 21ISIOPLUM15 | 07/03/1999 08:05:56.514 – 07/03/1999 08:06:26.759 | 0.113 | 307.206 | 1509597.1 | 15096.0 | 63.97 | No | GREEN, VIOLET |
| 21ISIOPLUM16 | 07/03/1999 10:04:14.509 – 07/03/1999 10:04:44.755 | 0.102 | 318.329 | 1649967.7 | 16499.7 | 69.54 | No | GREEN, VIOLET |