메타데이터
| 항목 |
값 |
| Designation |
P/2024 O2 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-04-20T05:24:07.672320Z |
| Orbit solution date (soln_date, UTC) |
2024-10-26T00:12:24Z |
| Obs used |
62 |
| NEO |
- |
| M1 |
12.500 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-07-28T12:51:01.324800Z |
| Discovery magnitude (MPC) |
20.88 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-08-25.0000000 |
| e |
0.49949412 |
| q (au) |
3.697574 |
| a (au) |
7.387674 |
| i (deg) |
28.973263 |
| Ω (om, deg) |
6.806464 |
| ω (w, deg) |
310.788811 |
| M (ma, deg) |
6.222656 |
밝기
산란 + 전체 선형
$$
M_a = (13.462 + 2.815\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.462 |
| n |
2.815 |
| gf |
1.000 |
| gb |
-0.865 |
| 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 |
02:36:18.39 |
+32:39:55.4 |
HIP 12200 |
16.90 |
| 2026-05-12 12:00 |
02:36:44.71 |
+32:42:39.4 |
HIP 12200 |
11.74 |
| 2026-05-13 00:00 |
02:37:11.01 |
+32:45:23.5 |
HIP 12200 |
8.12 |
| 2026-05-13 12:00 |
02:37:37.30 |
+32:48:07.8 |
HIP 12200 |
8.38 |
| 2026-05-14 00:00 |
02:38:03.58 |
+32:50:52.2 |
HIP 12200 |
12.26 |
| 2026-05-14 12:00 |
02:38:29.85 |
+32:53:36.8 |
HIP 12200 |
17.49 |
| 2026-05-15 00:00 |
02:38:56.10 |
+32:56:21.5 |
HIP 12419 |
13.75 |
| 2026-05-15 12:00 |
02:39:22.33 |
+32:59:06.3 |
HIP 12419 |
11.86 |
| 2026-05-16 00:00 |
02:39:48.55 |
+33:01:51.3 |
HIP 12419 |
12.98 |
| 2026-05-16 12:00 |
02:40:14.75 |
+33:04:36.4 |
HIP 12419 |
16.49 |
| 2026-05-17 00:00 |
02:40:40.94 |
+33:07:21.6 |
HIP 12419 |
21.23 |
| 2026-05-17 12:00 |
02:41:07.11 |
+33:10:07.0 |
HIP 12661 |
25.43 |
| 2026-05-18 00:00 |
02:41:33.26 |
+33:12:52.4 |
HIP 12661 |
23.59 |
| 2026-05-18 12:00 |
02:41:59.38 |
+33:15:38.0 |
HIP 12661 |
23.26 |
| 2026-05-19 00:00 |
02:42:25.49 |
+33:18:23.7 |
HIP 12661 |
24.53 |
| 2026-05-19 12:00 |
02:42:51.58 |
+33:21:09.6 |
HIP 12655 |
25.11 |
| 2026-05-20 00:00 |
02:43:17.65 |
+33:23:55.5 |
HIP 12655 |
23.81 |
| 2026-05-20 12:00 |
02:43:43.69 |
+33:26:41.6 |
HIP 12655 |
24.03 |
| 2026-05-21 00:00 |
02:44:09.71 |
+33:29:27.7 |
HIP 12655 |
25.72 |
| 2026-05-21 12:00 |
02:44:35.70 |
+33:32:14.0 |
HIP 12655 |
28.62 |
| 2026-05-22 00:00 |
02:45:01.68 |
+33:35:00.4 |
HIP 12655 |
32.40 |
| 2026-05-22 12:00 |
02:45:27.62 |
+33:37:46.8 |
HIP 12655 |
36.79 |
| 2026-05-23 00:00 |
02:45:53.54 |
+33:40:33.4 |
HIP 12655 |
41.59 |
| 2026-05-23 12:00 |
02:46:19.44 |
+33:43:20.1 |
HIP 13175 |
40.95 |
| 2026-05-24 00:00 |
02:46:45.30 |
+33:46:06.8 |
HIP 13175 |
34.98 |
| 2026-05-24 12:00 |
02:47:11.14 |
+33:48:53.7 |
HIP 13175 |
29.06 |
| 2026-05-25 00:00 |
02:47:36.95 |
+33:51:40.7 |
HIP 13175 |
23.21 |
| 2026-05-25 12:00 |
02:48:02.73 |
+33:54:27.7 |
HIP 13175 |
17.50 |
| 2026-05-26 00:00 |
02:48:28.48 |
+33:57:14.8 |
HIP 13175 |
12.12 |
| 2026-05-26 12:00 |
02:48:54.20 |
+34:00:02.1 |
HIP 13175 |
7.76 |
| 2026-05-27 00:00 |
02:49:19.89 |
+34:02:49.4 |
HIP 13175 |
6.79 |
| 2026-05-27 12:00 |
02:49:45.55 |
+34:05:36.8 |
HIP 13175 |
10.22 |
| 2026-05-28 00:00 |
02:50:11.18 |
+34:08:24.3 |
HIP 13175 |
15.32 |
| 2026-05-28 12:00 |
02:50:36.78 |
+34:11:11.8 |
HIP 13175 |
20.89 |
| 2026-05-29 00:00 |
02:51:02.34 |
+34:13:59.5 |
HIP 13375 |
16.30 |
| 2026-05-29 12:00 |
02:51:27.86 |
+34:16:47.2 |
HIP 13375 |
10.42 |
| 2026-05-30 00:00 |
02:51:53.36 |
+34:19:35.0 |
HIP 13375 |
4.76 |
| 2026-05-30 12:00 |
02:52:18.82 |
+34:22:22.9 |
HIP 13375 |
2.79 |
| 2026-05-31 00:00 |
02:52:44.24 |
+34:25:10.9 |
HIP 13375 |
7.98 |
| 2026-05-31 12:00 |
02:53:09.63 |
+34:27:59.0 |
HIP 13375 |
13.78 |
| 2026-06-01 00:00 |
02:53:34.98 |
+34:30:47.1 |
HIP 13375 |
19.65 |
| 2026-06-01 12:00 |
02:54:00.29 |
+34:33:35.3 |
HIP 13652 |
22.54 |
| 2026-06-02 00:00 |
02:54:25.57 |
+34:36:23.6 |
HIP 13628 |
16.70 |