메타데이터
| 항목 |
값 |
| Designation |
P/2022 C3 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-07-01T06:38:07.016640Z |
| Orbit solution date (soln_date, UTC) |
2023-10-29T03:13:09Z |
| Obs used |
123 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
15.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-02-09T14:55:00.796800Z |
| Discovery magnitude (MPC) |
20.92 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-04-23.0000000 |
| e |
0.54695784 |
| q (au) |
4.374506 |
| a (au) |
9.655848 |
| i (deg) |
12.815871 |
| Ω (om, deg) |
139.060787 |
| ω (w, deg) |
93.942616 |
| M (ma, deg) |
357.724357 |
밝기
산란 + 전체 선형
$$
M_a = (6.867 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
6.867 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-0.864 |
| k |
0.999 |
| 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 |
23:38:37.95 |
-09:26:57.4 |
HIP 116664 |
7.93 |
| 2026-07-29 12:00 |
23:38:32.98 |
-09:28:01.8 |
HIP 116664 |
8.91 |
| 2026-07-30 00:00 |
23:38:27.93 |
-09:29:06.7 |
HIP 116664 |
10.06 |
| 2026-07-30 12:00 |
23:38:22.78 |
-09:30:11.9 |
HIP 116664 |
11.35 |
| 2026-07-31 00:00 |
23:38:17.55 |
-09:31:17.7 |
HIP 116664 |
12.75 |
| 2026-07-31 12:00 |
23:38:12.22 |
-09:32:23.8 |
HIP 116664 |
14.22 |
| 2026-08-01 00:00 |
23:38:06.81 |
-09:33:30.4 |
HIP 116664 |
15.76 |
| 2026-08-01 12:00 |
23:38:01.31 |
-09:34:37.4 |
HIP 116664 |
17.35 |
| 2026-08-02 00:00 |
23:37:55.72 |
-09:35:44.8 |
HIP 116664 |
18.98 |
| 2026-08-02 12:00 |
23:37:50.04 |
-09:36:52.6 |
HIP 116664 |
20.66 |
| 2026-08-03 00:00 |
23:37:44.28 |
-09:38:00.8 |
HIP 116594 |
20.49 |
| 2026-08-03 12:00 |
23:37:38.43 |
-09:39:09.4 |
HIP 116594 |
19.35 |
| 2026-08-04 00:00 |
23:37:32.50 |
-09:40:18.4 |
HIP 116594 |
18.33 |
| 2026-08-04 12:00 |
23:37:26.48 |
-09:41:27.8 |
HIP 116594 |
17.44 |
| 2026-08-05 00:00 |
23:37:20.38 |
-09:42:37.5 |
HIP 116594 |
16.72 |
| 2026-08-05 12:00 |
23:37:14.19 |
-09:43:47.6 |
HIP 116594 |
16.20 |
| 2026-08-06 00:00 |
23:37:07.92 |
-09:44:58.1 |
HIP 116594 |
15.89 |
| 2026-08-06 12:00 |
23:37:01.57 |
-09:46:08.9 |
HIP 116594 |
15.83 |
| 2026-08-07 00:00 |
23:36:55.14 |
-09:47:20.1 |
HIP 116594 |
16.02 |
| 2026-08-07 12:00 |
23:36:48.63 |
-09:48:31.6 |
HIP 116594 |
16.46 |
| 2026-08-08 00:00 |
23:36:42.04 |
-09:49:43.5 |
HIP 116594 |
17.13 |
| 2026-08-08 12:00 |
23:36:35.36 |
-09:50:55.7 |
HIP 116594 |
18.03 |
| 2026-08-09 00:00 |
23:36:28.61 |
-09:52:08.1 |
HIP 116594 |
19.11 |
| 2026-08-09 12:00 |
23:36:21.79 |
-09:53:20.9 |
HIP 116404 |
20.11 |
| 2026-08-10 00:00 |
23:36:14.88 |
-09:54:34.0 |
HIP 116404 |
19.57 |
| 2026-08-10 12:00 |
23:36:07.90 |
-09:55:47.4 |
HIP 116404 |
19.23 |
| 2026-08-11 00:00 |
23:36:00.85 |
-09:57:01.1 |
HIP 116404 |
19.12 |
| 2026-08-11 12:00 |
23:35:53.72 |
-09:58:15.1 |
HIP 116404 |
19.23 |
| 2026-08-12 00:00 |
23:35:46.51 |
-09:59:29.3 |
HIP 116404 |
19.58 |
| 2026-08-12 12:00 |
23:35:39.24 |
-10:00:43.8 |
HIP 116404 |
20.16 |
| 2026-08-13 00:00 |
23:35:31.89 |
-10:01:58.5 |
HIP 116404 |
20.95 |
| 2026-08-13 12:00 |
23:35:24.48 |
-10:03:13.5 |
HIP 116404 |
21.93 |
| 2026-08-14 00:00 |
23:35:16.99 |
-10:04:28.7 |
HIP 116404 |
23.09 |
| 2026-08-14 12:00 |
23:35:09.43 |
-10:05:44.1 |
HIP 116404 |
24.40 |
| 2026-08-15 00:00 |
23:35:01.81 |
-10:06:59.8 |
HIP 116404 |
25.85 |
| 2026-08-15 12:00 |
23:34:54.12 |
-10:08:15.6 |
HIP 116419 |
26.37 |
| 2026-08-16 00:00 |
23:34:46.37 |
-10:09:31.7 |
HIP 116419 |
25.86 |
| 2026-08-16 12:00 |
23:34:38.55 |
-10:10:47.9 |
HIP 116419 |
25.55 |
| 2026-08-17 00:00 |
23:34:30.67 |
-10:12:04.3 |
HIP 116419 |
25.45 |
| 2026-08-17 12:00 |
23:34:22.73 |
-10:13:20.9 |
HIP 116419 |
25.57 |
| 2026-08-18 00:00 |
23:34:14.72 |
-10:14:37.7 |
HIP 116419 |
25.90 |
| 2026-08-18 12:00 |
23:34:06.66 |
-10:15:54.6 |
HIP 116419 |
26.45 |
| 2026-08-19 00:00 |
23:33:58.54 |
-10:17:11.6 |
HIP 116419 |
27.21 |