메타데이터
| 항목 |
값 |
| Designation |
443P/PANSTARRS-Christensen |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-10-09T17:10:55.254720Z |
| Orbit solution date (soln_date, UTC) |
2024-10-05T23:12:49Z |
| Obs used |
211 |
| NEO |
- |
| M1 |
9.200 |
| K1 |
17.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2005-07-05T04:57:05.184000Z |
| Discovery magnitude (MPC) |
21.40 V |
| Discovery observatory (MPC) |
G96 · University of Arizona Mt. Lemmon Survey |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2021-03-07.0000000 |
| e |
0.28450671 |
| q (au) |
2.956436 |
| a (au) |
4.132025 |
| i (deg) |
19.886402 |
| Ω (om, deg) |
108.960336 |
| ω (w, deg) |
145.019106 |
| M (ma, deg) |
291.739315 |
밝기
산란 + 전체 선형
$$
M_a = (9.779 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.779 |
| n |
6.000 |
| gf |
0.949 |
| gb |
-0.835 |
| k |
0.999 |
| δ90 |
8.175 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
04:14:50.94 |
+08:36:24.3 |
HIP 19850 |
12.68 |
| 2026-06-01 12:00 |
04:15:16.12 |
+08:37:51.0 |
HIP 19850 |
12.11 |
| 2026-06-02 00:00 |
04:15:41.30 |
+08:39:17.0 |
HIP 19912 |
10.03 |
| 2026-06-02 12:00 |
04:16:06.46 |
+08:40:42.4 |
HIP 19912 |
3.91 |
| 2026-06-03 00:00 |
04:16:31.63 |
+08:42:07.1 |
HIP 19912 |
3.39 |
| 2026-06-03 12:00 |
04:16:56.78 |
+08:43:31.3 |
HIP 19912 |
9.43 |
| 2026-06-04 00:00 |
04:17:21.93 |
+08:44:54.7 |
HIP 19912 |
15.73 |
| 2026-06-04 12:00 |
04:17:47.07 |
+08:46:17.6 |
HIP 19912 |
22.07 |
| 2026-06-05 00:00 |
04:18:12.19 |
+08:47:39.8 |
HIP 20068 |
21.67 |
| 2026-06-05 12:00 |
04:18:37.31 |
+08:49:01.3 |
HIP 20068 |
21.30 |
| 2026-06-06 00:00 |
04:19:02.42 |
+08:50:22.2 |
HIP 20068 |
22.77 |
| 2026-06-06 12:00 |
04:19:27.52 |
+08:51:42.5 |
HIP 20068 |
25.77 |
| 2026-06-07 00:00 |
04:19:52.61 |
+08:53:02.1 |
HIP 20281 |
24.75 |
| 2026-06-07 12:00 |
04:20:17.68 |
+08:54:21.1 |
HIP 20281 |
20.64 |
| 2026-06-08 00:00 |
04:20:42.75 |
+08:55:39.4 |
HIP 20281 |
17.90 |
| 2026-06-08 12:00 |
04:21:07.79 |
+08:56:57.1 |
HIP 20281 |
17.17 |
| 2026-06-09 00:00 |
04:21:32.83 |
+08:58:14.2 |
HIP 20281 |
18.69 |
| 2026-06-09 12:00 |
04:21:57.85 |
+08:59:30.6 |
HIP 20458 |
21.70 |
| 2026-06-10 00:00 |
04:22:22.85 |
+09:00:46.3 |
HIP 20458 |
16.83 |
| 2026-06-10 12:00 |
04:22:47.84 |
+09:02:01.4 |
HIP 20458 |
13.24 |
| 2026-06-11 00:00 |
04:23:12.82 |
+09:03:15.8 |
HIP 20458 |
12.12 |
| 2026-06-11 12:00 |
04:23:37.77 |
+09:04:29.6 |
HIP 20458 |
14.06 |
| 2026-06-12 00:00 |
04:24:02.71 |
+09:05:42.8 |
HIP 20458 |
18.09 |
| 2026-06-12 12:00 |
04:24:27.62 |
+09:06:55.2 |
HIP 20522 |
22.54 |
| 2026-06-13 00:00 |
04:24:52.52 |
+09:08:07.1 |
HIP 20522 |
24.62 |
| 2026-06-13 12:00 |
04:25:17.40 |
+09:09:18.2 |
HIP 20734 |
24.43 |
| 2026-06-14 00:00 |
04:25:42.25 |
+09:10:28.7 |
HIP 20734 |
18.96 |
| 2026-06-14 12:00 |
04:26:07.09 |
+09:11:38.6 |
HIP 20734 |
14.16 |
| 2026-06-15 00:00 |
04:26:31.90 |
+09:12:47.7 |
HIP 20734 |
10.95 |
| 2026-06-15 12:00 |
04:26:56.69 |
+09:13:56.3 |
HIP 20734 |
10.81 |
| 2026-06-16 00:00 |
04:27:21.45 |
+09:15:04.1 |
HIP 20734 |
13.83 |
| 2026-06-16 12:00 |
04:27:46.19 |
+09:16:11.3 |
HIP 20734 |
18.52 |
| 2026-06-17 00:00 |
04:28:10.90 |
+09:17:17.9 |
HIP 20941 |
23.30 |
| 2026-06-17 12:00 |
04:28:35.58 |
+09:18:23.7 |
HIP 20941 |
18.16 |
| 2026-06-18 00:00 |
04:29:00.24 |
+09:19:29.0 |
HIP 20941 |
13.93 |
| 2026-06-18 12:00 |
04:29:24.87 |
+09:20:33.5 |
HIP 20941 |
11.60 |
| 2026-06-19 00:00 |
04:29:49.47 |
+09:21:37.4 |
HIP 20941 |
12.31 |
| 2026-06-19 12:00 |
04:30:14.04 |
+09:22:40.6 |
HIP 20941 |
15.63 |
| 2026-06-20 00:00 |
04:30:38.58 |
+09:23:43.2 |
HIP 20941 |
20.31 |
| 2026-06-20 12:00 |
04:31:03.08 |
+09:24:45.1 |
HIP 20941 |
25.61 |
| 2026-06-21 00:00 |
04:31:27.56 |
+09:25:46.4 |
HIP 20941 |
31.21 |
| 2026-06-21 12:00 |
04:31:52.00 |
+09:26:47.0 |
HIP 21269 |
28.72 |
| 2026-06-22 00:00 |
04:32:16.42 |
+09:27:46.9 |
HIP 21269 |
22.82 |