메타데이터
| 항목 |
값 |
| Designation |
P/2013 R3 (Catalina-PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2013-08-05T03:50:44.286720Z |
| Orbit solution date (soln_date, UTC) |
2022-11-07T07:13:07Z |
| Obs used |
324 |
| NEO |
- |
| M1 |
7.200 |
| K1 |
30.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2013-10-13.0000000 |
| e |
0.27344549 |
| q (au) |
2.203607 |
| a (au) |
3.032955 |
| i (deg) |
0.898900 |
| Ω (om, deg) |
342.683923 |
| ω (w, deg) |
8.238778 |
| M (ma, deg) |
12.845309 |
밝기
산란 + 전체 선형
$$
M_a = (15.274 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.274 |
| n |
2.000 |
| gf |
0.968 |
| gb |
-0.824 |
| k |
0.999 |
| δ90 |
9.995 |
| 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 |
11:21:01.82 |
+04:07:08.3 |
HIP 55467 |
9.63 |
| 2026-09-20 12:00 |
11:21:33.55 |
+04:03:43.3 |
HIP 55460 |
7.55 |
| 2026-09-21 00:00 |
11:22:05.25 |
+04:00:18.4 |
HIP 55460 |
9.85 |
| 2026-09-21 12:00 |
11:22:36.94 |
+03:56:53.4 |
HIP 55574 |
13.07 |
| 2026-09-22 00:00 |
11:23:08.62 |
+03:53:28.5 |
HIP 55574 |
14.88 |
| 2026-09-22 12:00 |
11:23:40.27 |
+03:50:03.6 |
HIP 55638 |
13.23 |
| 2026-09-23 00:00 |
11:24:11.91 |
+03:46:38.7 |
HIP 55638 |
10.73 |
| 2026-09-23 12:00 |
11:24:43.52 |
+03:43:13.8 |
HIP 55638 |
14.26 |
| 2026-09-24 00:00 |
11:25:15.12 |
+03:39:49.0 |
HIP 55791 |
14.67 |
| 2026-09-24 12:00 |
11:25:46.69 |
+03:36:24.1 |
HIP 55791 |
15.23 |
| 2026-09-25 00:00 |
11:26:18.25 |
+03:32:59.3 |
HIP 55769 |
17.78 |
| 2026-09-25 12:00 |
11:26:49.79 |
+03:29:34.5 |
HIP 55769 |
20.98 |
| 2026-09-26 00:00 |
11:27:21.30 |
+03:26:09.8 |
HIP 55769 |
26.67 |
| 2026-09-26 12:00 |
11:27:52.79 |
+03:22:45.1 |
HIP 55846 |
27.64 |
| 2026-09-27 00:00 |
11:28:24.26 |
+03:19:20.5 |
HIP 56102 |
24.63 |
| 2026-09-27 12:00 |
11:28:55.71 |
+03:15:55.9 |
HIP 56102 |
16.17 |
| 2026-09-28 00:00 |
11:29:27.14 |
+03:12:31.3 |
HIP 56102 |
7.91 |
| 2026-09-28 12:00 |
11:29:58.54 |
+03:09:06.8 |
HIP 56102 |
3.20 |
| 2026-09-29 00:00 |
11:30:29.92 |
+03:05:42.4 |
HIP 56102 |
10.19 |
| 2026-09-29 12:00 |
11:31:01.28 |
+03:02:18.1 |
HIP 56209 |
5.70 |
| 2026-09-30 00:00 |
11:31:32.61 |
+02:58:53.8 |
HIP 56209 |
5.39 |
| 2026-09-30 12:00 |
11:32:03.92 |
+02:55:29.5 |
HIP 56209 |
13.08 |
| 2026-10-01 00:00 |
11:32:35.21 |
+02:52:05.4 |
HIP 56209 |
21.40 |
| 2026-10-01 12:00 |
11:33:06.46 |
+02:48:41.3 |
HIP 56388 |
20.17 |
| 2026-10-02 00:00 |
11:33:37.70 |
+02:45:17.3 |
HIP 56388 |
15.35 |
| 2026-10-02 12:00 |
11:34:08.90 |
+02:41:53.4 |
HIP 56388 |
14.45 |
| 2026-10-03 00:00 |
11:34:40.08 |
+02:38:29.6 |
HIP 56513 |
14.38 |
| 2026-10-03 12:00 |
11:35:11.24 |
+02:35:05.9 |
HIP 56513 |
15.88 |
| 2026-10-04 00:00 |
11:35:42.36 |
+02:31:42.3 |
HIP 56513 |
21.02 |
| 2026-10-04 12:00 |
11:36:13.46 |
+02:28:18.9 |
HIP 56682 |
17.51 |
| 2026-10-05 00:00 |
11:36:44.53 |
+02:24:55.5 |
HIP 56682 |
12.52 |
| 2026-10-05 12:00 |
11:37:15.56 |
+02:21:32.2 |
HIP 56682 |
12.27 |
| 2026-10-06 00:00 |
11:37:46.57 |
+02:18:09.1 |
HIP 56682 |
16.95 |
| 2026-10-06 12:00 |
11:38:17.55 |
+02:14:46.1 |
HIP 56755 |
19.29 |
| 2026-10-07 00:00 |
11:38:48.50 |
+02:11:23.2 |
HIP 56755 |
18.58 |
| 2026-10-07 12:00 |
11:39:19.41 |
+02:08:00.5 |
HIP 56755 |
21.45 |
| 2026-10-08 00:00 |
11:39:50.30 |
+02:04:38.0 |
HIP 56755 |
26.78 |
| 2026-10-08 12:00 |
11:40:21.15 |
+02:01:15.5 |
HIP 56938 |
25.31 |
| 2026-10-09 00:00 |
11:40:51.96 |
+01:57:53.3 |
HIP 56938 |
23.16 |
| 2026-10-09 12:00 |
11:41:22.74 |
+01:54:31.2 |
HIP 56938 |
23.94 |
| 2026-10-10 00:00 |
11:41:53.49 |
+01:51:09.3 |
HIP 56938 |
27.40 |
| 2026-10-10 12:00 |
11:42:24.20 |
+01:47:47.5 |
HIP 56938 |
32.69 |
| 2026-10-11 00:00 |
11:42:54.87 |
+01:44:26.0 |
HIP 57315 |
34.07 |