메타데이터
| 항목 |
값 |
| Designation |
P/2022 R5 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-05-27T20:48:27.054720Z |
| Orbit solution date (soln_date, UTC) |
2022-11-29T21:43:49Z |
| Obs used |
47 |
| NEO |
- |
| M1 |
15.800 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-09-08T14:25:00.393600Z |
| Discovery magnitude (MPC) |
21.35 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-10-13.0000000 |
| e |
0.19578965 |
| q (au) |
2.469627 |
| a (au) |
3.070872 |
| i (deg) |
15.291928 |
| Ω (om, deg) |
115.067048 |
| ω (w, deg) |
240.680778 |
| M (ma, deg) |
25.299334 |
밝기
산란 + 전체 선형
$$
M_a = (14.907 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.907 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.559 |
| 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) |
| 2026-06-01 00:00 |
16:07:57.26 |
-03:09:06.5 |
HIP 78945 |
15.91 |
| 2026-06-01 12:00 |
16:07:32.65 |
-03:09:28.7 |
HIP 78945 |
10.28 |
| 2026-06-02 00:00 |
16:07:08.11 |
-03:09:52.8 |
HIP 78945 |
5.82 |
| 2026-06-02 12:00 |
16:06:43.61 |
-03:10:19.0 |
HIP 78945 |
6.08 |
| 2026-06-03 00:00 |
16:06:19.19 |
-03:10:47.3 |
HIP 78945 |
10.70 |
| 2026-06-03 12:00 |
16:05:54.83 |
-03:11:17.6 |
HIP 78813 |
12.76 |
| 2026-06-04 00:00 |
16:05:30.54 |
-03:11:49.9 |
HIP 78813 |
9.37 |
| 2026-06-04 12:00 |
16:05:06.33 |
-03:12:24.4 |
HIP 78813 |
9.28 |
| 2026-06-05 00:00 |
16:04:42.21 |
-03:13:00.8 |
HIP 78725 |
6.28 |
| 2026-06-05 12:00 |
16:04:18.18 |
-03:13:39.4 |
HIP 78725 |
0.60 |
| 2026-06-06 00:00 |
16:03:54.24 |
-03:14:20.0 |
HIP 78725 |
5.82 |
| 2026-06-06 12:00 |
16:03:30.40 |
-03:15:02.7 |
HIP 78725 |
11.80 |
| 2026-06-07 00:00 |
16:03:06.67 |
-03:15:47.4 |
HIP 78725 |
17.77 |
| 2026-06-07 12:00 |
16:02:43.05 |
-03:16:34.2 |
HIP 78577 |
22.91 |
| 2026-06-08 00:00 |
16:02:19.54 |
-03:17:23.1 |
HIP 78577 |
22.82 |
| 2026-06-08 12:00 |
16:01:56.16 |
-03:18:14.1 |
HIP 78577 |
24.18 |
| 2026-06-09 00:00 |
16:01:32.90 |
-03:19:07.1 |
HIP 78577 |
26.75 |
| 2026-06-09 12:00 |
16:01:09.78 |
-03:20:02.2 |
HIP 78513 |
26.94 |
| 2026-06-10 00:00 |
16:00:46.79 |
-03:20:59.4 |
HIP 78513 |
28.29 |
| 2026-06-10 12:00 |
16:00:23.95 |
-03:21:58.7 |
HIP 78268 |
28.73 |
| 2026-06-11 00:00 |
16:00:01.25 |
-03:23:00.0 |
HIP 78268 |
25.24 |
| 2026-06-11 12:00 |
15:59:38.70 |
-03:24:03.4 |
HIP 78268 |
22.74 |
| 2026-06-12 00:00 |
15:59:16.31 |
-03:25:08.8 |
HIP 78268 |
21.56 |
| 2026-06-12 12:00 |
15:58:54.09 |
-03:26:16.3 |
HIP 78268 |
21.88 |
| 2026-06-13 00:00 |
15:58:32.03 |
-03:27:25.9 |
HIP 78268 |
23.62 |
| 2026-06-13 12:00 |
15:58:10.15 |
-03:28:37.5 |
HIP 78268 |
26.48 |
| 2026-06-14 00:00 |
15:57:48.44 |
-03:29:51.2 |
HIP 78268 |
30.12 |
| 2026-06-14 12:00 |
15:57:26.91 |
-03:31:06.9 |
HIP 78116 |
32.35 |
| 2026-06-15 00:00 |
15:57:05.58 |
-03:32:24.6 |
HIP 78116 |
33.10 |
| 2026-06-15 12:00 |
15:56:44.43 |
-03:33:44.4 |
HIP 78116 |
34.73 |
| 2026-06-16 00:00 |
15:56:23.49 |
-03:35:06.2 |
HIP 78116 |
37.11 |
| 2026-06-16 12:00 |
15:56:02.74 |
-03:36:30.0 |
HIP 78089 |
39.03 |
| 2026-06-17 00:00 |
15:55:42.20 |
-03:37:55.9 |
HIP 78089 |
39.27 |
| 2026-06-17 12:00 |
15:55:21.87 |
-03:39:23.7 |
HIP 77899 |
39.66 |
| 2026-06-18 00:00 |
15:55:01.75 |
-03:40:53.5 |
HIP 77899 |
36.83 |
| 2026-06-18 12:00 |
15:54:41.86 |
-03:42:25.3 |
HIP 77899 |
34.54 |
| 2026-06-19 00:00 |
15:54:22.19 |
-03:43:59.1 |
HIP 77899 |
32.88 |
| 2026-06-19 12:00 |
15:54:02.74 |
-03:45:34.8 |
HIP 77899 |
31.93 |
| 2026-06-20 00:00 |
15:53:43.52 |
-03:47:12.4 |
HIP 77899 |
31.73 |
| 2026-06-20 12:00 |
15:53:24.54 |
-03:48:52.0 |
HIP 77899 |
32.27 |
| 2026-06-21 00:00 |
15:53:05.80 |
-03:50:33.5 |
HIP 77899 |
33.50 |
| 2026-06-21 12:00 |
15:52:47.30 |
-03:52:16.9 |
HIP 77899 |
35.33 |
| 2026-06-22 00:00 |
15:52:29.04 |
-03:54:02.2 |
HIP 77899 |
37.65 |