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) |
| 2026-05-12 00:00 |
07:04:08.22 |
+09:00:26.8 |
HIP 33995 |
13.69 |
| 2026-05-12 12:00 |
07:04:13.05 |
+09:00:28.0 |
HIP 33995 |
14.88 |
| 2026-05-13 00:00 |
07:04:17.93 |
+09:00:29.0 |
HIP 33995 |
16.08 |
| 2026-05-13 12:00 |
07:04:22.87 |
+09:00:29.7 |
HIP 33995 |
17.30 |
| 2026-05-14 00:00 |
07:04:27.87 |
+09:00:30.1 |
HIP 33995 |
18.53 |
| 2026-05-14 12:00 |
07:04:32.93 |
+09:00:30.2 |
HIP 34215 |
19.48 |
| 2026-05-15 00:00 |
07:04:38.04 |
+09:00:30.0 |
HIP 34215 |
18.44 |
| 2026-05-15 12:00 |
07:04:43.20 |
+09:00:29.6 |
HIP 34215 |
17.42 |
| 2026-05-16 00:00 |
07:04:48.42 |
+09:00:28.9 |
HIP 34215 |
16.42 |
| 2026-05-16 12:00 |
07:04:53.69 |
+09:00:27.8 |
HIP 34215 |
15.47 |
| 2026-05-17 00:00 |
07:04:59.02 |
+09:00:26.5 |
HIP 34215 |
14.56 |
| 2026-05-17 12:00 |
07:05:04.40 |
+09:00:25.0 |
HIP 34215 |
13.72 |
| 2026-05-18 00:00 |
07:05:09.83 |
+09:00:23.1 |
HIP 34215 |
12.95 |
| 2026-05-18 12:00 |
07:05:15.32 |
+09:00:20.9 |
HIP 34215 |
12.28 |
| 2026-05-19 00:00 |
07:05:20.85 |
+09:00:18.5 |
HIP 34215 |
11.73 |
| 2026-05-19 12:00 |
07:05:26.44 |
+09:00:15.7 |
HIP 34215 |
11.32 |
| 2026-05-20 00:00 |
07:05:32.07 |
+09:00:12.7 |
HIP 34215 |
11.07 |
| 2026-05-20 12:00 |
07:05:37.75 |
+09:00:09.4 |
HIP 34215 |
11.00 |
| 2026-05-21 00:00 |
07:05:43.49 |
+09:00:05.8 |
HIP 34215 |
11.11 |
| 2026-05-21 12:00 |
07:05:49.27 |
+09:00:01.9 |
HIP 34215 |
11.40 |
| 2026-05-22 00:00 |
07:05:55.10 |
+08:59:57.7 |
HIP 34215 |
11.87 |
| 2026-05-22 12:00 |
07:06:00.97 |
+08:59:53.2 |
HIP 34215 |
12.50 |
| 2026-05-23 00:00 |
07:06:06.89 |
+08:59:48.4 |
HIP 34215 |
13.27 |
| 2026-05-23 12:00 |
07:06:12.86 |
+08:59:43.4 |
HIP 34215 |
14.16 |
| 2026-05-24 00:00 |
07:06:18.87 |
+08:59:38.0 |
HIP 34215 |
15.15 |
| 2026-05-24 12:00 |
07:06:24.93 |
+08:59:32.4 |
HIP 34215 |
16.23 |
| 2026-05-25 00:00 |
07:06:31.03 |
+08:59:26.5 |
HIP 34215 |
17.38 |
| 2026-05-25 12:00 |
07:06:37.18 |
+08:59:20.2 |
HIP 34215 |
18.60 |
| 2026-05-26 00:00 |
07:06:43.36 |
+08:59:13.7 |
HIP 34215 |
19.86 |
| 2026-05-26 12:00 |
07:06:49.60 |
+08:59:06.9 |
HIP 34215 |
21.18 |
| 2026-05-27 00:00 |
07:06:55.87 |
+08:58:59.8 |
HIP 34215 |
22.53 |
| 2026-05-27 12:00 |
07:07:02.18 |
+08:58:52.4 |
HIP 34215 |
23.92 |
| 2026-05-28 00:00 |
07:07:08.54 |
+08:58:44.8 |
HIP 34215 |
25.35 |
| 2026-05-28 12:00 |
07:07:14.93 |
+08:58:36.8 |
HIP 34419 |
25.81 |
| 2026-05-29 00:00 |
07:07:21.37 |
+08:58:28.5 |
HIP 34419 |
24.91 |
| 2026-05-29 12:00 |
07:07:27.84 |
+08:58:20.0 |
HIP 34419 |
24.07 |
| 2026-05-30 00:00 |
07:07:34.35 |
+08:58:11.2 |
HIP 34419 |
23.30 |
| 2026-05-30 12:00 |
07:07:40.91 |
+08:58:02.0 |
HIP 34419 |
22.62 |
| 2026-05-31 00:00 |
07:07:47.50 |
+08:57:52.6 |
HIP 34419 |
22.03 |
| 2026-05-31 12:00 |
07:07:54.12 |
+08:57:42.9 |
HIP 34419 |
21.54 |
| 2026-06-01 00:00 |
07:08:00.79 |
+08:57:32.9 |
HIP 34419 |
21.16 |
| 2026-06-01 12:00 |
07:08:07.49 |
+08:57:22.6 |
HIP 34419 |
20.91 |
| 2026-06-02 00:00 |
07:08:14.22 |
+08:57:12.0 |
HIP 34419 |
20.77 |