메타데이터
| 항목 |
값 |
| Designation |
P/2013 T1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2013-07-31T06:21:57.487680Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:40Z |
| Obs used |
43 |
| NEO |
- |
| M1 |
16.600 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2013-10-08.0000000 |
| e |
0.62326867 |
| q (au) |
2.210495 |
| a (au) |
5.867565 |
| i (deg) |
24.210241 |
| Ω (om, deg) |
10.283835 |
| ω (w, deg) |
345.840008 |
| M (ma, deg) |
4.766435 |
밝기
산란 + 전체 선형
$$
M_a = (13.931 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.931 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-09-20 00:00 |
15:41:06.42 |
-41:17:11.3 |
HIP 76719 |
18.06 |
| 2026-09-20 12:00 |
15:41:38.12 |
-41:17:05.2 |
HIP 76719 |
22.75 |
| 2026-09-21 00:00 |
15:42:10.03 |
-41:17:00.0 |
HIP 76992 |
18.99 |
| 2026-09-21 12:00 |
15:42:42.15 |
-41:16:55.4 |
HIP 76992 |
15.81 |
| 2026-09-22 00:00 |
15:43:14.49 |
-41:16:51.7 |
HIP 76992 |
14.58 |
| 2026-09-22 12:00 |
15:43:47.04 |
-41:16:48.6 |
HIP 76992 |
15.82 |
| 2026-09-23 00:00 |
15:44:19.79 |
-41:16:46.3 |
HIP 76992 |
19.09 |
| 2026-09-23 12:00 |
15:44:52.76 |
-41:16:44.8 |
HIP 77230 |
21.46 |
| 2026-09-24 00:00 |
15:45:25.94 |
-41:16:44.0 |
HIP 77230 |
17.90 |
| 2026-09-24 12:00 |
15:45:59.32 |
-41:16:43.8 |
HIP 77230 |
16.08 |
| 2026-09-25 00:00 |
15:46:32.91 |
-41:16:44.4 |
HIP 77364 |
15.93 |
| 2026-09-25 12:00 |
15:47:06.70 |
-41:16:45.7 |
HIP 77364 |
12.25 |
| 2026-09-26 00:00 |
15:47:40.70 |
-41:16:47.7 |
HIP 77364 |
11.26 |
| 2026-09-26 12:00 |
15:48:14.90 |
-41:16:50.3 |
HIP 77364 |
13.61 |
| 2026-09-27 00:00 |
15:48:49.31 |
-41:16:53.6 |
HIP 77364 |
18.08 |
| 2026-09-27 12:00 |
15:49:23.92 |
-41:16:57.6 |
HIP 77364 |
23.52 |
| 2026-09-28 00:00 |
15:49:58.73 |
-41:17:02.2 |
HIP 77742 |
26.78 |
| 2026-09-28 12:00 |
15:50:33.74 |
-41:17:07.5 |
HIP 77742 |
20.23 |
| 2026-09-29 00:00 |
15:51:08.95 |
-41:17:13.4 |
HIP 77742 |
13.67 |
| 2026-09-29 12:00 |
15:51:44.37 |
-41:17:20.0 |
HIP 77742 |
7.18 |
| 2026-09-30 00:00 |
15:52:19.98 |
-41:17:27.1 |
HIP 77742 |
2.13 |
| 2026-09-30 12:00 |
15:52:55.79 |
-41:17:34.9 |
HIP 77742 |
6.89 |
| 2026-10-01 00:00 |
15:53:31.80 |
-41:17:43.3 |
HIP 77888 |
12.34 |
| 2026-10-01 12:00 |
15:54:08.00 |
-41:17:52.2 |
HIP 77888 |
8.12 |
| 2026-10-02 00:00 |
15:54:44.40 |
-41:18:01.8 |
HIP 77888 |
8.52 |
| 2026-10-02 12:00 |
15:55:21.00 |
-41:18:11.9 |
HIP 77888 |
13.19 |
| 2026-10-03 00:00 |
15:55:57.80 |
-41:18:22.6 |
HIP 78133 |
18.74 |
| 2026-10-03 12:00 |
15:56:34.79 |
-41:18:33.9 |
HIP 78133 |
13.95 |
| 2026-10-04 00:00 |
15:57:11.97 |
-41:18:45.7 |
HIP 78133 |
11.59 |
| 2026-10-04 12:00 |
15:57:49.35 |
-41:18:58.1 |
HIP 78133 |
13.09 |
| 2026-10-05 00:00 |
15:58:26.93 |
-41:19:11.0 |
HIP 78133 |
17.54 |
| 2026-10-05 12:00 |
15:59:04.69 |
-41:19:24.4 |
HIP 78215 |
21.85 |
| 2026-10-06 00:00 |
15:59:42.65 |
-41:19:38.4 |
HIP 78323 |
25.13 |
| 2026-10-06 12:00 |
16:00:20.80 |
-41:19:52.9 |
HIP 78323 |
26.52 |
| 2026-10-07 00:00 |
16:00:59.14 |
-41:20:07.9 |
HIP 78618 |
23.74 |
| 2026-10-07 12:00 |
16:01:37.67 |
-41:20:23.3 |
HIP 78618 |
16.87 |
| 2026-10-08 00:00 |
16:02:16.39 |
-41:20:39.3 |
HIP 78618 |
10.46 |
| 2026-10-08 12:00 |
16:02:55.30 |
-41:20:55.7 |
HIP 78618 |
6.30 |
| 2026-10-09 00:00 |
16:03:34.39 |
-41:21:12.7 |
HIP 78618 |
8.77 |
| 2026-10-09 12:00 |
16:04:13.68 |
-41:21:30.1 |
HIP 78618 |
14.93 |
| 2026-10-10 00:00 |
16:04:53.15 |
-41:21:47.9 |
HIP 78618 |
21.88 |
| 2026-10-10 12:00 |
16:05:32.80 |
-41:22:06.2 |
HIP 78712 |
25.97 |
| 2026-10-11 00:00 |
16:06:12.64 |
-41:22:24.9 |
HIP 78712 |
30.88 |