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
$$
M_a = (15.273 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.273 |
| n |
2.000 |
| gf |
0.981 |
| gb |
-0.824 |
| k |
0.999 |
| δ90 |
9.997 |
| 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 |
09:12:54.22 |
+16:23:17.6 |
HIP 45201 |
8.87 |
| 2026-03-26 12:00 |
09:12:45.91 |
+16:23:48.7 |
HIP 45201 |
7.81 |
| 2026-03-27 00:00 |
09:12:37.88 |
+16:24:18.6 |
HIP 45201 |
7.21 |
| 2026-03-27 12:00 |
09:12:30.15 |
+16:24:47.1 |
HIP 45201 |
7.13 |
| 2026-03-28 00:00 |
09:12:22.70 |
+16:25:14.3 |
HIP 45201 |
7.52 |
| 2026-03-28 12:00 |
09:12:15.55 |
+16:25:40.2 |
HIP 45201 |
8.29 |
| 2026-03-29 00:00 |
09:12:08.67 |
+16:26:04.8 |
HIP 45201 |
9.28 |
| 2026-03-29 12:00 |
09:12:02.09 |
+16:26:28.1 |
HIP 45201 |
10.41 |
| 2026-03-30 00:00 |
09:11:55.80 |
+16:26:50.2 |
HIP 45201 |
11.60 |
| 2026-03-30 12:00 |
09:11:49.79 |
+16:27:11.0 |
HIP 45201 |
12.81 |
| 2026-03-31 00:00 |
09:11:44.07 |
+16:27:30.5 |
HIP 45201 |
14.01 |
| 2026-03-31 12:00 |
09:11:38.64 |
+16:27:48.7 |
HIP 45201 |
15.19 |
| 2026-04-01 00:00 |
09:11:33.50 |
+16:28:05.6 |
HIP 45201 |
16.33 |
| 2026-04-01 12:00 |
09:11:28.64 |
+16:28:21.3 |
HIP 45201 |
17.42 |
| 2026-04-02 00:00 |
09:11:24.07 |
+16:28:35.7 |
HIP 45201 |
18.46 |
| 2026-04-02 12:00 |
09:11:19.78 |
+16:28:48.9 |
HIP 45201 |
19.44 |
| 2026-04-03 00:00 |
09:11:15.78 |
+16:29:00.8 |
HIP 45201 |
20.37 |
| 2026-04-03 12:00 |
09:11:12.07 |
+16:29:11.4 |
HIP 45201 |
21.23 |
| 2026-04-04 00:00 |
09:11:08.64 |
+16:29:20.8 |
HIP 45201 |
22.03 |
| 2026-04-04 12:00 |
09:11:05.50 |
+16:29:29.0 |
HIP 45201 |
22.77 |
| 2026-04-05 00:00 |
09:11:02.64 |
+16:29:35.9 |
HIP 45201 |
23.44 |
| 2026-04-05 12:00 |
09:11:00.06 |
+16:29:41.5 |
HIP 45201 |
24.05 |
| 2026-04-06 00:00 |
09:10:57.77 |
+16:29:45.9 |
HIP 45201 |
24.59 |
| 2026-04-06 12:00 |
09:10:55.76 |
+16:29:49.1 |
HIP 45201 |
25.07 |
| 2026-04-07 00:00 |
09:10:54.03 |
+16:29:51.0 |
HIP 45201 |
25.48 |
| 2026-04-07 12:00 |
09:10:52.58 |
+16:29:51.8 |
HIP 45201 |
25.83 |
| 2026-04-08 00:00 |
09:10:51.42 |
+16:29:51.2 |
HIP 45201 |
26.10 |
| 2026-04-08 12:00 |
09:10:50.53 |
+16:29:49.5 |
HIP 45201 |
26.32 |
| 2026-04-09 00:00 |
09:10:49.93 |
+16:29:46.6 |
HIP 45201 |
26.47 |
| 2026-04-09 12:00 |
09:10:49.60 |
+16:29:42.4 |
HIP 45201 |
26.55 |
| 2026-04-10 00:00 |
09:10:49.56 |
+16:29:37.0 |
HIP 45201 |
26.57 |
| 2026-04-10 12:00 |
09:10:49.79 |
+16:29:30.4 |
HIP 45201 |
26.52 |
| 2026-04-11 00:00 |
09:10:50.29 |
+16:29:22.6 |
HIP 45201 |
26.41 |
| 2026-04-11 12:00 |
09:10:51.08 |
+16:29:13.6 |
HIP 45201 |
26.23 |
| 2026-04-12 00:00 |
09:10:52.14 |
+16:29:03.4 |
HIP 45201 |
26.00 |
| 2026-04-12 12:00 |
09:10:53.47 |
+16:28:52.0 |
HIP 45201 |
25.70 |
| 2026-04-13 00:00 |
09:10:55.08 |
+16:28:39.4 |
HIP 45201 |
25.34 |
| 2026-04-13 12:00 |
09:10:56.96 |
+16:28:25.6 |
HIP 45201 |
24.92 |
| 2026-04-14 00:00 |
09:10:59.12 |
+16:28:10.6 |
HIP 45201 |
24.44 |
| 2026-04-14 12:00 |
09:11:01.54 |
+16:27:54.4 |
HIP 45201 |
23.90 |
| 2026-04-15 00:00 |
09:11:04.24 |
+16:27:37.1 |
HIP 45201 |
23.31 |
| 2026-04-15 12:00 |
09:11:07.20 |
+16:27:18.5 |
HIP 45201 |
22.66 |
| 2026-04-16 00:00 |
09:11:10.43 |
+16:26:58.8 |
HIP 45201 |
21.97 |