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 |
1.000 |
| 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) |
| 2026-09-20 00:00 |
13:32:49.81 |
-01:30:36.4 |
HIP 65987 |
22.94 |
| 2026-09-20 12:00 |
13:33:19.94 |
-01:34:13.1 |
HIP 65987 |
30.94 |
| 2026-09-21 00:00 |
13:33:50.13 |
-01:37:49.6 |
HIP 65987 |
39.10 |
| 2026-09-21 12:00 |
13:34:20.37 |
-01:41:25.9 |
HIP 66391 |
44.20 |
| 2026-09-22 00:00 |
13:34:50.66 |
-01:45:02.1 |
HIP 66391 |
40.82 |
| 2026-09-22 12:00 |
13:35:21.01 |
-01:48:38.1 |
HIP 66391 |
38.98 |
| 2026-09-23 00:00 |
13:35:51.41 |
-01:52:13.9 |
HIP 66499 |
33.14 |
| 2026-09-23 12:00 |
13:36:21.85 |
-01:55:49.5 |
HIP 66499 |
24.74 |
| 2026-09-24 00:00 |
13:36:52.35 |
-01:59:24.9 |
HIP 66499 |
16.33 |
| 2026-09-24 12:00 |
13:37:22.90 |
-02:03:00.2 |
HIP 66499 |
7.93 |
| 2026-09-25 00:00 |
13:37:53.50 |
-02:06:35.2 |
HIP 66499 |
1.23 |
| 2026-09-25 12:00 |
13:38:24.15 |
-02:10:10.0 |
HIP 66499 |
9.10 |
| 2026-09-26 00:00 |
13:38:54.85 |
-02:13:44.6 |
HIP 66499 |
17.53 |
| 2026-09-26 12:00 |
13:39:25.59 |
-02:17:19.0 |
HIP 66686 |
12.88 |
| 2026-09-27 00:00 |
13:39:56.38 |
-02:20:53.2 |
HIP 66686 |
4.42 |
| 2026-09-27 12:00 |
13:40:27.23 |
-02:24:27.2 |
HIP 66686 |
4.12 |
| 2026-09-28 00:00 |
13:40:58.11 |
-02:28:01.0 |
HIP 66686 |
12.60 |
| 2026-09-28 12:00 |
13:41:29.05 |
-02:31:34.5 |
HIP 66686 |
21.11 |
| 2026-09-29 00:00 |
13:42:00.03 |
-02:35:07.9 |
HIP 66922 |
15.27 |
| 2026-09-29 12:00 |
13:42:31.06 |
-02:38:40.9 |
HIP 66922 |
12.07 |
| 2026-09-30 00:00 |
13:43:02.13 |
-02:42:13.8 |
HIP 66922 |
14.26 |
| 2026-09-30 12:00 |
13:43:33.25 |
-02:45:46.4 |
HIP 66922 |
20.17 |
| 2026-10-01 00:00 |
13:44:04.42 |
-02:49:18.8 |
HIP 66922 |
27.50 |
| 2026-10-01 12:00 |
13:44:35.63 |
-02:52:50.9 |
HIP 67099 |
27.47 |
| 2026-10-02 00:00 |
13:45:06.88 |
-02:56:22.8 |
HIP 67099 |
22.55 |
| 2026-10-02 12:00 |
13:45:38.18 |
-02:59:54.4 |
HIP 67099 |
20.22 |
| 2026-10-03 00:00 |
13:46:09.52 |
-03:03:25.8 |
HIP 67099 |
21.38 |
| 2026-10-03 12:00 |
13:46:40.90 |
-03:06:56.9 |
HIP 67099 |
25.55 |
| 2026-10-04 00:00 |
13:47:12.33 |
-03:10:27.8 |
HIP 67385 |
29.46 |
| 2026-10-04 12:00 |
13:47:43.80 |
-03:13:58.4 |
HIP 67387 |
23.83 |
| 2026-10-05 00:00 |
13:48:15.31 |
-03:17:28.7 |
HIP 67387 |
16.94 |
| 2026-10-05 12:00 |
13:48:46.86 |
-03:20:58.7 |
HIP 67387 |
12.42 |
| 2026-10-06 00:00 |
13:49:18.45 |
-03:24:28.5 |
HIP 67387 |
13.05 |
| 2026-10-06 12:00 |
13:49:50.09 |
-03:27:57.9 |
HIP 67387 |
18.32 |
| 2026-10-07 00:00 |
13:50:21.76 |
-03:31:27.1 |
HIP 67387 |
25.50 |
| 2026-10-07 12:00 |
13:50:53.47 |
-03:34:56.0 |
HIP 67387 |
33.39 |
| 2026-10-08 00:00 |
13:51:25.22 |
-03:38:24.6 |
HIP 67785 |
27.31 |
| 2026-10-08 12:00 |
13:51:57.01 |
-03:41:52.8 |
HIP 67785 |
20.94 |
| 2026-10-09 00:00 |
13:52:28.83 |
-03:45:20.8 |
HIP 67785 |
16.76 |
| 2026-10-09 12:00 |
13:53:00.70 |
-03:48:48.4 |
HIP 67785 |
16.53 |
| 2026-10-10 00:00 |
13:53:32.59 |
-03:52:15.7 |
HIP 67785 |
20.39 |
| 2026-10-10 12:00 |
13:54:04.53 |
-03:55:42.7 |
HIP 67785 |
26.62 |
| 2026-10-11 00:00 |
13:54:36.50 |
-03:59:09.4 |
HIP 67991 |
26.15 |