메타데이터
| 항목 |
값 |
| Designation |
P/2022 S1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-08-19T02:31:28.692480Z |
| Orbit solution date (soln_date, UTC) |
2023-04-21T18:43:51Z |
| Obs used |
80 |
| NEO |
- |
| M1 |
13.900 |
| K1 |
8.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-09-23T14:19:53.068800Z |
| Discovery magnitude (MPC) |
20.52 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-11-01.0000000 |
| e |
0.50834103 |
| q (au) |
3.151366 |
| a (au) |
6.409659 |
| i (deg) |
34.581851 |
| Ω (om, deg) |
136.092070 |
| ω (w, deg) |
262.742903 |
| M (ma, deg) |
4.488132 |
밝기
산란 + 전체 선형
$$
M_a = (12.398 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.398 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-0.659 |
| k |
0.800 |
| δ90 |
10.000 |
| 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) |
| 2026-07-29 00:00 |
11:47:47.56 |
+23:45:17.0 |
HIP 57488 |
10.86 |
| 2026-07-29 12:00 |
11:48:00.90 |
+23:43:31.3 |
HIP 57488 |
13.72 |
| 2026-07-30 00:00 |
11:48:14.31 |
+23:41:45.6 |
HIP 57488 |
16.85 |
| 2026-07-30 12:00 |
11:48:27.78 |
+23:40:00.0 |
HIP 57488 |
20.14 |
| 2026-07-31 00:00 |
11:48:41.31 |
+23:38:14.3 |
HIP 57488 |
23.51 |
| 2026-07-31 12:00 |
11:48:54.91 |
+23:36:28.7 |
HIP 57488 |
26.95 |
| 2026-08-01 00:00 |
11:49:08.57 |
+23:34:43.1 |
HIP 57488 |
30.44 |
| 2026-08-01 12:00 |
11:49:22.29 |
+23:32:57.5 |
HIP 57488 |
33.96 |
| 2026-08-02 00:00 |
11:49:36.07 |
+23:31:12.0 |
HIP 57842 |
31.91 |
| 2026-08-02 12:00 |
11:49:49.91 |
+23:29:26.5 |
HIP 57842 |
29.90 |
| 2026-08-03 00:00 |
11:50:03.82 |
+23:27:41.1 |
HIP 57842 |
28.20 |
| 2026-08-03 12:00 |
11:50:17.78 |
+23:25:55.7 |
HIP 57842 |
26.88 |
| 2026-08-04 00:00 |
11:50:31.80 |
+23:24:10.4 |
HIP 57842 |
26.00 |
| 2026-08-04 12:00 |
11:50:45.88 |
+23:22:25.1 |
HIP 57842 |
25.60 |
| 2026-08-05 00:00 |
11:51:00.02 |
+23:20:39.9 |
HIP 57842 |
25.73 |
| 2026-08-05 12:00 |
11:51:14.21 |
+23:18:54.8 |
HIP 57842 |
26.36 |
| 2026-08-06 00:00 |
11:51:28.47 |
+23:17:09.7 |
HIP 57842 |
27.48 |
| 2026-08-06 12:00 |
11:51:42.78 |
+23:15:24.7 |
HIP 57842 |
29.04 |
| 2026-08-07 00:00 |
11:51:57.14 |
+23:13:39.8 |
HIP 57842 |
30.96 |
| 2026-08-07 12:00 |
11:52:11.56 |
+23:11:54.9 |
HIP 57795 |
31.41 |
| 2026-08-08 00:00 |
11:52:26.04 |
+23:10:10.2 |
HIP 57795 |
31.76 |
| 2026-08-08 12:00 |
11:52:40.57 |
+23:08:25.6 |
HIP 57795 |
32.56 |
| 2026-08-09 00:00 |
11:52:55.15 |
+23:06:41.0 |
HIP 57795 |
33.77 |
| 2026-08-09 12:00 |
11:53:09.79 |
+23:04:56.6 |
HIP 57795 |
35.36 |
| 2026-08-10 00:00 |
11:53:24.48 |
+23:03:12.2 |
HIP 57795 |
37.28 |
| 2026-08-10 12:00 |
11:53:39.22 |
+23:01:28.0 |
HIP 58164 |
36.61 |
| 2026-08-11 00:00 |
11:53:54.01 |
+22:59:43.9 |
HIP 58164 |
32.87 |
| 2026-08-11 12:00 |
11:54:08.86 |
+22:58:00.0 |
HIP 58164 |
29.15 |
| 2026-08-12 00:00 |
11:54:23.75 |
+22:56:16.1 |
HIP 58164 |
25.46 |
| 2026-08-12 12:00 |
11:54:38.70 |
+22:54:32.4 |
HIP 58164 |
21.82 |
| 2026-08-13 00:00 |
11:54:53.69 |
+22:52:48.9 |
HIP 58164 |
18.25 |
| 2026-08-13 12:00 |
11:55:08.74 |
+22:51:05.4 |
HIP 58164 |
14.83 |
| 2026-08-14 00:00 |
11:55:23.83 |
+22:49:22.2 |
HIP 58164 |
11.69 |
| 2026-08-14 12:00 |
11:55:38.96 |
+22:47:39.1 |
HIP 58164 |
9.13 |
| 2026-08-15 00:00 |
11:55:54.15 |
+22:45:56.1 |
HIP 58164 |
7.79 |
| 2026-08-15 12:00 |
11:56:09.38 |
+22:44:13.4 |
HIP 58164 |
8.28 |
| 2026-08-16 00:00 |
11:56:24.65 |
+22:42:30.8 |
HIP 58164 |
10.35 |
| 2026-08-16 12:00 |
11:56:39.97 |
+22:40:48.4 |
HIP 58297 |
8.92 |
| 2026-08-17 00:00 |
11:56:55.34 |
+22:39:06.1 |
HIP 58297 |
5.31 |
| 2026-08-17 12:00 |
11:57:10.75 |
+22:37:24.1 |
HIP 58297 |
2.78 |
| 2026-08-18 00:00 |
11:57:26.20 |
+22:35:42.2 |
HIP 58297 |
4.28 |
| 2026-08-18 12:00 |
11:57:41.69 |
+22:34:00.5 |
HIP 58297 |
7.75 |
| 2026-08-19 00:00 |
11:57:57.22 |
+22:32:19.1 |
HIP 58297 |
11.55 |