메타데이터
| 항목 |
값 |
| Designation |
443P/PANSTARRS-Christensen |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-10-09T17:25:48.768960Z |
| Orbit solution date (soln_date, UTC) |
2026-06-09T11:12:50Z |
| Obs used |
215 |
| 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) |
2021-03-15.0000000 |
| e |
0.28450047 |
| q (au) |
2.956429 |
| a (au) |
4.131979 |
| i (deg) |
19.886357 |
| Ω (om, deg) |
108.960208 |
| ω (w, deg) |
145.020866 |
| M (ma, deg) |
292.675732 |
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) |
| 2026-09-20 00:00 |
05:24:00.49 |
+09:45:42.8 |
HIP 25326 |
19.86 |
| 2026-09-20 12:00 |
05:24:05.88 |
+09:45:07.4 |
HIP 25326 |
19.30 |
| 2026-09-21 00:00 |
05:24:11.08 |
+09:44:31.8 |
HIP 25326 |
18.87 |
| 2026-09-21 12:00 |
05:24:16.10 |
+09:43:56.0 |
HIP 25326 |
18.56 |
| 2026-09-22 00:00 |
05:24:20.94 |
+09:43:20.0 |
HIP 25326 |
18.39 |
| 2026-09-22 12:00 |
05:24:25.59 |
+09:42:43.8 |
HIP 25326 |
18.33 |
| 2026-09-23 00:00 |
05:24:30.05 |
+09:42:07.4 |
HIP 25326 |
18.38 |
| 2026-09-23 12:00 |
05:24:34.33 |
+09:41:30.8 |
HIP 25326 |
18.54 |
| 2026-09-24 00:00 |
05:24:38.42 |
+09:40:54.0 |
HIP 25326 |
18.80 |
| 2026-09-24 12:00 |
05:24:42.33 |
+09:40:17.0 |
HIP 25326 |
19.13 |
| 2026-09-25 00:00 |
05:24:46.05 |
+09:39:39.8 |
HIP 25326 |
19.54 |
| 2026-09-25 12:00 |
05:24:49.58 |
+09:39:02.5 |
HIP 25326 |
20.02 |
| 2026-09-26 00:00 |
05:24:52.92 |
+09:38:25.0 |
HIP 25326 |
20.54 |
| 2026-09-26 12:00 |
05:24:56.07 |
+09:37:47.4 |
HIP 25326 |
21.11 |
| 2026-09-27 00:00 |
05:24:59.03 |
+09:37:09.6 |
HIP 25326 |
21.71 |
| 2026-09-27 12:00 |
05:25:01.80 |
+09:36:31.7 |
HIP 25326 |
22.34 |
| 2026-09-28 00:00 |
05:25:04.38 |
+09:35:53.6 |
HIP 25326 |
22.99 |
| 2026-09-28 12:00 |
05:25:06.76 |
+09:35:15.3 |
HIP 25375 |
23.23 |
| 2026-09-29 00:00 |
05:25:08.96 |
+09:34:37.0 |
HIP 25375 |
22.44 |
| 2026-09-29 12:00 |
05:25:10.96 |
+09:33:58.5 |
HIP 25375 |
21.66 |
| 2026-09-30 00:00 |
05:25:12.76 |
+09:33:19.9 |
HIP 25375 |
20.91 |
| 2026-09-30 12:00 |
05:25:14.38 |
+09:32:41.2 |
HIP 25375 |
20.16 |
| 2026-10-01 00:00 |
05:25:15.80 |
+09:32:02.4 |
HIP 25375 |
19.44 |
| 2026-10-01 12:00 |
05:25:17.02 |
+09:31:23.5 |
HIP 25375 |
18.72 |
| 2026-10-02 00:00 |
05:25:18.04 |
+09:30:44.5 |
HIP 25375 |
18.03 |
| 2026-10-02 12:00 |
05:25:18.87 |
+09:30:05.4 |
HIP 25375 |
17.34 |
| 2026-10-03 00:00 |
05:25:19.51 |
+09:29:26.2 |
HIP 25375 |
16.68 |
| 2026-10-03 12:00 |
05:25:19.94 |
+09:28:46.9 |
HIP 25375 |
16.02 |
| 2026-10-04 00:00 |
05:25:20.18 |
+09:28:07.6 |
HIP 25375 |
15.39 |
| 2026-10-04 12:00 |
05:25:20.21 |
+09:27:28.2 |
HIP 25375 |
14.77 |
| 2026-10-05 00:00 |
05:25:20.05 |
+09:26:48.8 |
HIP 25375 |
14.18 |
| 2026-10-05 12:00 |
05:25:19.69 |
+09:26:09.3 |
HIP 25375 |
13.61 |
| 2026-10-06 00:00 |
05:25:19.13 |
+09:25:29.7 |
HIP 25375 |
13.07 |
| 2026-10-06 12:00 |
05:25:18.36 |
+09:24:50.2 |
HIP 25375 |
12.56 |
| 2026-10-07 00:00 |
05:25:17.40 |
+09:24:10.6 |
HIP 25375 |
12.10 |
| 2026-10-07 12:00 |
05:25:16.23 |
+09:23:31.0 |
HIP 25375 |
11.69 |
| 2026-10-08 00:00 |
05:25:14.87 |
+09:22:51.4 |
HIP 25375 |
11.34 |
| 2026-10-08 12:00 |
05:25:13.30 |
+09:22:11.8 |
HIP 25375 |
11.06 |
| 2026-10-09 00:00 |
05:25:11.53 |
+09:21:32.2 |
HIP 25375 |
10.86 |
| 2026-10-09 12:00 |
05:25:09.55 |
+09:20:52.6 |
HIP 25375 |
10.75 |
| 2026-10-10 00:00 |
05:25:07.38 |
+09:20:13.0 |
HIP 25375 |
10.75 |
| 2026-10-10 12:00 |
05:25:05.00 |
+09:19:33.5 |
HIP 25375 |
10.85 |
| 2026-10-11 00:00 |
05:25:02.42 |
+09:18:54.0 |
HIP 25375 |
11.07 |