메타데이터
| 항목 |
값 |
| Designation |
C/2022 L1 (Catalina) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2022-09-28T05:52:28.940160Z |
| Orbit solution date (soln_date, UTC) |
2023-02-13T23:13:35Z |
| Obs used |
415 |
| NEO |
- |
| M1 |
13.100 |
| K1 |
16.750 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2022-06-04T10:13:35.904000Z |
| Discovery magnitude (MPC) |
19.30 G |
| Discovery observatory (MPC) |
703 · Catalina Sky Survey |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-08-30.0000000 |
| e |
0.99710505 |
| q (au) |
1.591537 |
| a (au) |
549.763100 |
| i (deg) |
123.469284 |
| Ω (om, deg) |
300.024952 |
| ω (w, deg) |
59.851285 |
| M (ma, deg) |
359.997764 |
밝기
산란 + 전체 선형
$$
M_a = (13.376 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.376 |
| n |
6.000 |
| gf |
0.800 |
| gb |
-0.588 |
| k |
0.955 |
| δ90 |
1.000 |
| 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) |
| 2026-03-26 00:00 |
07:01:57.69 |
+08:40:21.3 |
HIP 33884 |
8.36 |
| 2026-03-26 12:00 |
07:01:55.12 |
+08:40:43.2 |
HIP 33832 |
8.21 |
| 2026-03-27 00:00 |
07:01:52.64 |
+08:41:05.0 |
HIP 33832 |
7.78 |
| 2026-03-27 12:00 |
07:01:50.26 |
+08:41:26.6 |
HIP 33832 |
7.41 |
| 2026-03-28 00:00 |
07:01:47.97 |
+08:41:48.1 |
HIP 33832 |
7.11 |
| 2026-03-28 12:00 |
07:01:45.78 |
+08:42:09.5 |
HIP 33832 |
6.88 |
| 2026-03-29 00:00 |
07:01:43.68 |
+08:42:30.7 |
HIP 33832 |
6.72 |
| 2026-03-29 12:00 |
07:01:41.67 |
+08:42:51.8 |
HIP 33832 |
6.63 |
| 2026-03-30 00:00 |
07:01:39.76 |
+08:43:12.7 |
HIP 33832 |
6.60 |
| 2026-03-30 12:00 |
07:01:37.94 |
+08:43:33.4 |
HIP 33832 |
6.64 |
| 2026-03-31 00:00 |
07:01:36.21 |
+08:43:54.1 |
HIP 33832 |
6.73 |
| 2026-03-31 12:00 |
07:01:34.58 |
+08:44:14.5 |
HIP 33832 |
6.87 |
| 2026-04-01 00:00 |
07:01:33.04 |
+08:44:34.8 |
HIP 33832 |
7.05 |
| 2026-04-01 12:00 |
07:01:31.59 |
+08:44:54.9 |
HIP 33832 |
7.27 |
| 2026-04-02 00:00 |
07:01:30.23 |
+08:45:14.9 |
HIP 33832 |
7.52 |
| 2026-04-02 12:00 |
07:01:28.96 |
+08:45:34.7 |
HIP 33832 |
7.78 |
| 2026-04-03 00:00 |
07:01:27.78 |
+08:45:54.4 |
HIP 33832 |
8.07 |
| 2026-04-03 12:00 |
07:01:26.70 |
+08:46:13.9 |
HIP 33832 |
8.37 |
| 2026-04-04 00:00 |
07:01:25.70 |
+08:46:33.2 |
HIP 33832 |
8.67 |
| 2026-04-04 12:00 |
07:01:24.80 |
+08:46:52.3 |
HIP 33832 |
8.98 |
| 2026-04-05 00:00 |
07:01:23.99 |
+08:47:11.3 |
HIP 33832 |
9.29 |
| 2026-04-05 12:00 |
07:01:23.26 |
+08:47:30.1 |
HIP 33832 |
9.61 |
| 2026-04-06 00:00 |
07:01:22.63 |
+08:47:48.7 |
HIP 33832 |
9.92 |
| 2026-04-06 12:00 |
07:01:22.08 |
+08:48:07.1 |
HIP 33832 |
10.24 |
| 2026-04-07 00:00 |
07:01:21.63 |
+08:48:25.4 |
HIP 33832 |
10.54 |
| 2026-04-07 12:00 |
07:01:21.26 |
+08:48:43.4 |
HIP 33832 |
10.85 |
| 2026-04-08 00:00 |
07:01:20.98 |
+08:49:01.3 |
HIP 33832 |
11.15 |
| 2026-04-08 12:00 |
07:01:20.79 |
+08:49:19.0 |
HIP 33832 |
11.45 |
| 2026-04-09 00:00 |
07:01:20.69 |
+08:49:36.5 |
HIP 33832 |
11.74 |
| 2026-04-09 12:00 |
07:01:20.68 |
+08:49:53.8 |
HIP 33832 |
12.03 |
| 2026-04-10 00:00 |
07:01:20.75 |
+08:50:11.0 |
HIP 33832 |
12.31 |
| 2026-04-10 12:00 |
07:01:20.91 |
+08:50:27.9 |
HIP 33832 |
12.59 |
| 2026-04-11 00:00 |
07:01:21.15 |
+08:50:44.6 |
HIP 33832 |
12.87 |
| 2026-04-11 12:00 |
07:01:21.48 |
+08:51:01.1 |
HIP 33832 |
13.14 |
| 2026-04-12 00:00 |
07:01:21.90 |
+08:51:17.5 |
HIP 33832 |
13.41 |
| 2026-04-12 12:00 |
07:01:22.41 |
+08:51:33.6 |
HIP 33832 |
13.67 |
| 2026-04-13 00:00 |
07:01:23.00 |
+08:51:49.5 |
HIP 33832 |
13.93 |
| 2026-04-13 12:00 |
07:01:23.67 |
+08:52:05.2 |
HIP 33832 |
14.19 |
| 2026-04-14 00:00 |
07:01:24.43 |
+08:52:20.7 |
HIP 33832 |
14.45 |
| 2026-04-14 12:00 |
07:01:25.27 |
+08:52:36.0 |
HIP 33832 |
14.71 |
| 2026-04-15 00:00 |
07:01:26.20 |
+08:52:51.1 |
HIP 33832 |
14.97 |
| 2026-04-15 12:00 |
07:01:27.21 |
+08:53:05.9 |
HIP 33832 |
15.23 |
| 2026-04-16 00:00 |
07:01:28.30 |
+08:53:20.6 |
HIP 33832 |
15.49 |