메타데이터
| 항목 |
값 |
| Designation |
C/2013 L2 (Catalina) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2012-05-11T04:41:32.150400Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:37Z |
| Obs used |
242 |
| NEO |
- |
| M1 |
12.300 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2013-06-27.0000000 |
| e |
1.00092750 |
| q (au) |
4.872285 |
| a (au) |
-5253.163467 |
| i (deg) |
106.776427 |
| Ω (om, deg) |
285.877705 |
| ω (w, deg) |
1.941215 |
| M (ma, deg) |
0.001066 |
밝기
산란 + 전체 선형
$$
M_a = (10.956 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.956 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.501 |
| 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 |
09:23:24.40 |
+62:02:07.9 |
HIP 46099 |
16.40 |
| 2026-05-12 12:00 |
09:23:24.05 |
+62:01:18.4 |
HIP 46099 |
15.62 |
| 2026-05-13 00:00 |
09:23:23.78 |
+62:00:28.8 |
HIP 46099 |
14.84 |
| 2026-05-13 12:00 |
09:23:23.58 |
+61:59:39.2 |
HIP 46099 |
14.07 |
| 2026-05-14 00:00 |
09:23:23.45 |
+61:58:49.6 |
HIP 46099 |
13.30 |
| 2026-05-14 12:00 |
09:23:23.39 |
+61:57:59.9 |
HIP 46099 |
12.53 |
| 2026-05-15 00:00 |
09:23:23.39 |
+61:57:10.1 |
HIP 46099 |
11.76 |
| 2026-05-15 12:00 |
09:23:23.47 |
+61:56:20.3 |
HIP 46099 |
11.00 |
| 2026-05-16 00:00 |
09:23:23.62 |
+61:55:30.4 |
HIP 46099 |
10.25 |
| 2026-05-16 12:00 |
09:23:23.84 |
+61:54:40.5 |
HIP 46099 |
9.51 |
| 2026-05-17 00:00 |
09:23:24.13 |
+61:53:50.6 |
HIP 46099 |
8.77 |
| 2026-05-17 12:00 |
09:23:24.48 |
+61:53:00.6 |
HIP 46099 |
8.05 |
| 2026-05-18 00:00 |
09:23:24.91 |
+61:52:10.6 |
HIP 46099 |
7.35 |
| 2026-05-18 12:00 |
09:23:25.40 |
+61:51:20.6 |
HIP 46099 |
6.68 |
| 2026-05-19 00:00 |
09:23:25.96 |
+61:50:30.5 |
HIP 46099 |
6.04 |
| 2026-05-19 12:00 |
09:23:26.59 |
+61:49:40.4 |
HIP 46099 |
5.44 |
| 2026-05-20 00:00 |
09:23:27.28 |
+61:48:50.3 |
HIP 46099 |
4.91 |
| 2026-05-20 12:00 |
09:23:28.05 |
+61:48:00.2 |
HIP 46099 |
4.47 |
| 2026-05-21 00:00 |
09:23:28.88 |
+61:47:10.1 |
HIP 46099 |
4.14 |
| 2026-05-21 12:00 |
09:23:29.78 |
+61:46:20.0 |
HIP 46099 |
3.96 |
| 2026-05-22 00:00 |
09:23:30.74 |
+61:45:29.8 |
HIP 46099 |
3.95 |
| 2026-05-22 12:00 |
09:23:31.77 |
+61:44:39.7 |
HIP 46099 |
4.11 |
| 2026-05-23 00:00 |
09:23:32.86 |
+61:43:49.6 |
HIP 46099 |
4.42 |
| 2026-05-23 12:00 |
09:23:34.03 |
+61:42:59.5 |
HIP 46099 |
4.85 |
| 2026-05-24 00:00 |
09:23:35.25 |
+61:42:09.3 |
HIP 46099 |
5.38 |
| 2026-05-24 12:00 |
09:23:36.54 |
+61:41:19.2 |
HIP 46099 |
5.97 |
| 2026-05-25 00:00 |
09:23:37.90 |
+61:40:29.1 |
HIP 46099 |
6.62 |
| 2026-05-25 12:00 |
09:23:39.31 |
+61:39:39.1 |
HIP 46099 |
7.31 |
| 2026-05-26 00:00 |
09:23:40.80 |
+61:38:49.0 |
HIP 46099 |
8.02 |
| 2026-05-26 12:00 |
09:23:42.34 |
+61:37:59.0 |
HIP 46099 |
8.76 |
| 2026-05-27 00:00 |
09:23:43.95 |
+61:37:09.0 |
HIP 46099 |
9.52 |
| 2026-05-27 12:00 |
09:23:45.62 |
+61:36:19.0 |
HIP 46099 |
10.28 |
| 2026-05-28 00:00 |
09:23:47.36 |
+61:35:29.0 |
HIP 46099 |
11.06 |
| 2026-05-28 12:00 |
09:23:49.15 |
+61:34:39.1 |
HIP 46099 |
11.85 |
| 2026-05-29 00:00 |
09:23:51.01 |
+61:33:49.2 |
HIP 46099 |
12.65 |
| 2026-05-29 12:00 |
09:23:52.93 |
+61:32:59.4 |
HIP 46099 |
13.45 |
| 2026-05-30 00:00 |
09:23:54.91 |
+61:32:09.6 |
HIP 46099 |
14.26 |
| 2026-05-30 12:00 |
09:23:56.95 |
+61:31:19.8 |
HIP 46099 |
15.07 |
| 2026-05-31 00:00 |
09:23:59.06 |
+61:30:30.1 |
HIP 46099 |
15.89 |
| 2026-05-31 12:00 |
09:24:01.22 |
+61:29:40.5 |
HIP 46099 |
16.71 |
| 2026-06-01 00:00 |
09:24:03.44 |
+61:28:50.9 |
HIP 46099 |
17.54 |
| 2026-06-01 12:00 |
09:24:05.72 |
+61:28:01.3 |
HIP 46099 |
18.37 |
| 2026-06-02 00:00 |
09:24:08.06 |
+61:27:11.8 |
HIP 46099 |
19.20 |