메타데이터
| 항목 |
값 |
| Designation |
358P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2023-11-11T04:28:15.360960Z |
| Orbit solution date (soln_date, UTC) |
2024-03-05T09:31:37Z |
| Obs used |
252 |
| NEO |
- |
| M1 |
7.800 |
| K1 |
30.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-08-02.0000000 |
| e |
0.23889221 |
| q (au) |
2.394903 |
| a (au) |
3.146602 |
| i (deg) |
11.060250 |
| Ω (om, deg) |
85.702465 |
| ω (w, deg) |
299.772862 |
| M (ma, deg) |
277.680859 |
밝기
산란 + 전체 선형
$$
M_a = (13.358 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.358 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-1.000 |
| k |
1.000 |
| 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) |
| 2026-05-12 00:00 |
12:28:33.92 |
+11:05:51.9 |
HIP 60943 |
13.56 |
| 2026-05-12 12:00 |
12:28:23.63 |
+11:05:12.0 |
HIP 60784 |
13.41 |
| 2026-05-13 00:00 |
12:28:13.59 |
+11:04:30.2 |
HIP 60784 |
11.23 |
| 2026-05-13 12:00 |
12:28:03.78 |
+11:03:46.4 |
HIP 60784 |
9.32 |
| 2026-05-14 00:00 |
12:27:54.22 |
+11:03:00.7 |
HIP 60784 |
7.81 |
| 2026-05-14 12:00 |
12:27:44.89 |
+11:02:13.1 |
HIP 60784 |
6.95 |
| 2026-05-15 00:00 |
12:27:35.81 |
+11:01:23.6 |
HIP 60784 |
6.92 |
| 2026-05-15 12:00 |
12:27:26.97 |
+11:00:32.2 |
HIP 60784 |
7.69 |
| 2026-05-16 00:00 |
12:27:18.37 |
+10:59:38.9 |
HIP 60784 |
9.02 |
| 2026-05-16 12:00 |
12:27:10.02 |
+10:58:43.7 |
HIP 60784 |
10.68 |
| 2026-05-17 00:00 |
12:27:01.91 |
+10:57:46.7 |
HIP 60784 |
12.52 |
| 2026-05-17 12:00 |
12:26:54.05 |
+10:56:47.9 |
HIP 60784 |
14.45 |
| 2026-05-18 00:00 |
12:26:46.44 |
+10:55:47.2 |
HIP 60784 |
16.42 |
| 2026-05-18 12:00 |
12:26:39.07 |
+10:54:44.7 |
HIP 60784 |
18.40 |
| 2026-05-19 00:00 |
12:26:31.95 |
+10:53:40.4 |
HIP 60784 |
20.39 |
| 2026-05-19 12:00 |
12:26:25.07 |
+10:52:34.2 |
HIP 60784 |
22.36 |
| 2026-05-20 00:00 |
12:26:18.45 |
+10:51:26.3 |
HIP 60784 |
24.32 |
| 2026-05-20 12:00 |
12:26:12.07 |
+10:50:16.6 |
HIP 60784 |
26.26 |
| 2026-05-21 00:00 |
12:26:05.94 |
+10:49:05.1 |
HIP 60784 |
28.17 |
| 2026-05-21 12:00 |
12:26:00.06 |
+10:47:51.9 |
HIP 60784 |
30.06 |
| 2026-05-22 00:00 |
12:25:54.43 |
+10:46:37.0 |
HIP 60527 |
31.58 |
| 2026-05-22 12:00 |
12:25:49.05 |
+10:45:20.3 |
HIP 60527 |
31.70 |
| 2026-05-23 00:00 |
12:25:43.91 |
+10:44:01.9 |
HIP 60527 |
31.98 |
| 2026-05-23 12:00 |
12:25:39.02 |
+10:42:41.9 |
HIP 60510 |
32.30 |
| 2026-05-24 00:00 |
12:25:34.38 |
+10:41:20.1 |
HIP 60510 |
30.52 |
| 2026-05-24 12:00 |
12:25:29.99 |
+10:39:56.7 |
HIP 60510 |
28.76 |
| 2026-05-25 00:00 |
12:25:25.84 |
+10:38:31.7 |
HIP 60510 |
27.02 |
| 2026-05-25 12:00 |
12:25:21.94 |
+10:37:05.0 |
HIP 60510 |
25.29 |
| 2026-05-26 00:00 |
12:25:18.29 |
+10:35:36.6 |
HIP 60510 |
23.59 |
| 2026-05-26 12:00 |
12:25:14.88 |
+10:34:06.7 |
HIP 60510 |
21.90 |
| 2026-05-27 00:00 |
12:25:11.72 |
+10:32:35.2 |
HIP 60510 |
20.24 |
| 2026-05-27 12:00 |
12:25:08.80 |
+10:31:02.1 |
HIP 60510 |
18.62 |
| 2026-05-28 00:00 |
12:25:06.13 |
+10:29:27.4 |
HIP 60510 |
17.03 |
| 2026-05-28 12:00 |
12:25:03.70 |
+10:27:51.1 |
HIP 60510 |
15.50 |
| 2026-05-29 00:00 |
12:25:01.52 |
+10:26:13.3 |
HIP 60510 |
14.04 |
| 2026-05-29 12:00 |
12:24:59.58 |
+10:24:34.0 |
HIP 60510 |
12.67 |
| 2026-05-30 00:00 |
12:24:57.88 |
+10:22:53.2 |
HIP 60510 |
11.45 |
| 2026-05-30 12:00 |
12:24:56.42 |
+10:21:10.8 |
HIP 60510 |
10.42 |
| 2026-05-31 00:00 |
12:24:55.21 |
+10:19:27.0 |
HIP 60510 |
9.66 |
| 2026-05-31 12:00 |
12:24:54.24 |
+10:17:41.7 |
HIP 60510 |
9.22 |
| 2026-06-01 00:00 |
12:24:53.50 |
+10:15:54.9 |
HIP 60510 |
9.18 |
| 2026-06-01 12:00 |
12:24:53.01 |
+10:14:06.7 |
HIP 60510 |
9.55 |
| 2026-06-02 00:00 |
12:24:52.76 |
+10:12:17.0 |
HIP 60510 |
10.29 |