메타데이터
| 항목 |
값 |
| Designation |
C/2016 S1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2017-03-16T19:29:49.666560Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:26Z |
| Obs used |
127 |
| NEO |
- |
| M1 |
5.700 |
| K1 |
24.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-11-07.0000000 |
| e |
0.70884778 |
| q (au) |
2.411908 |
| a (au) |
8.284009 |
| i (deg) |
94.689671 |
| Ω (om, deg) |
227.538223 |
| ω (w, deg) |
273.611282 |
| M (ma, deg) |
354.633893 |
밝기
산란 + 전체 선형
$$
M_a = (9.502 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.502 |
| n |
6.000 |
| gf |
0.926 |
| gb |
-0.858 |
| k |
0.992 |
| δ90 |
8.697 |
| 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 |
17:02:04.84 |
+67:11:12.8 |
HIP 83436 |
6.45 |
| 2026-05-12 12:00 |
17:01:46.49 |
+67:12:26.6 |
HIP 83436 |
8.37 |
| 2026-05-13 00:00 |
17:01:28.03 |
+67:13:39.2 |
HIP 83436 |
10.39 |
| 2026-05-13 12:00 |
17:01:09.46 |
+67:14:50.7 |
HIP 83436 |
12.45 |
| 2026-05-14 00:00 |
17:00:50.79 |
+67:16:00.9 |
HIP 83436 |
14.55 |
| 2026-05-14 12:00 |
17:00:32.01 |
+67:17:10.1 |
HIP 83436 |
16.65 |
| 2026-05-15 00:00 |
17:00:13.14 |
+67:18:18.0 |
HIP 83148 |
18.76 |
| 2026-05-15 12:00 |
16:59:54.16 |
+67:19:24.8 |
HIP 83148 |
19.58 |
| 2026-05-16 00:00 |
16:59:35.09 |
+67:20:30.4 |
HIP 83148 |
20.56 |
| 2026-05-16 12:00 |
16:59:15.93 |
+67:21:34.8 |
HIP 82841 |
21.35 |
| 2026-05-17 00:00 |
16:58:56.67 |
+67:22:38.0 |
HIP 82841 |
19.25 |
| 2026-05-17 12:00 |
16:58:37.32 |
+67:23:40.1 |
HIP 82841 |
17.17 |
| 2026-05-18 00:00 |
16:58:17.89 |
+67:24:40.9 |
HIP 82841 |
15.09 |
| 2026-05-18 12:00 |
16:57:58.37 |
+67:25:40.5 |
HIP 82841 |
13.02 |
| 2026-05-19 00:00 |
16:57:38.76 |
+67:26:38.9 |
HIP 82841 |
10.98 |
| 2026-05-19 12:00 |
16:57:19.08 |
+67:27:36.1 |
HIP 82841 |
8.96 |
| 2026-05-20 00:00 |
16:56:59.32 |
+67:28:32.0 |
HIP 82841 |
7.00 |
| 2026-05-20 12:00 |
16:56:39.48 |
+67:29:26.8 |
HIP 82841 |
5.15 |
| 2026-05-21 00:00 |
16:56:19.57 |
+67:30:20.3 |
HIP 82841 |
3.58 |
| 2026-05-21 12:00 |
16:55:59.59 |
+67:31:12.6 |
HIP 82841 |
2.81 |
| 2026-05-22 00:00 |
16:55:39.54 |
+67:32:03.7 |
HIP 82841 |
3.41 |
| 2026-05-22 12:00 |
16:55:19.42 |
+67:32:53.5 |
HIP 82841 |
4.91 |
| 2026-05-23 00:00 |
16:54:59.24 |
+67:33:42.1 |
HIP 82841 |
6.72 |
| 2026-05-23 12:00 |
16:54:39.00 |
+67:34:29.5 |
HIP 82841 |
8.65 |
| 2026-05-24 00:00 |
16:54:18.70 |
+67:35:15.6 |
HIP 82841 |
10.63 |
| 2026-05-24 12:00 |
16:53:58.34 |
+67:36:00.5 |
HIP 82841 |
12.63 |
| 2026-05-25 00:00 |
16:53:37.93 |
+67:36:44.1 |
HIP 82841 |
14.65 |
| 2026-05-25 12:00 |
16:53:17.47 |
+67:37:26.5 |
HIP 82841 |
16.67 |
| 2026-05-26 00:00 |
16:52:56.95 |
+67:38:07.6 |
HIP 82518 |
17.77 |
| 2026-05-26 12:00 |
16:52:36.39 |
+67:38:47.5 |
HIP 82518 |
16.58 |
| 2026-05-27 00:00 |
16:52:15.79 |
+67:39:26.2 |
HIP 82518 |
15.59 |
| 2026-05-27 12:00 |
16:51:55.14 |
+67:40:03.6 |
HIP 82336 |
14.72 |
| 2026-05-28 00:00 |
16:51:34.45 |
+67:40:39.8 |
HIP 82336 |
13.06 |
| 2026-05-28 12:00 |
16:51:13.72 |
+67:41:14.7 |
HIP 82336 |
11.52 |
| 2026-05-29 00:00 |
16:50:52.96 |
+67:41:48.3 |
HIP 82336 |
10.14 |
| 2026-05-29 12:00 |
16:50:32.16 |
+67:42:20.7 |
HIP 82336 |
9.01 |
| 2026-05-30 00:00 |
16:50:11.33 |
+67:42:51.8 |
HIP 82336 |
8.23 |
| 2026-05-30 12:00 |
16:49:50.48 |
+67:43:21.7 |
HIP 82336 |
7.89 |
| 2026-05-31 00:00 |
16:49:29.60 |
+67:43:50.4 |
HIP 82336 |
8.05 |
| 2026-05-31 12:00 |
16:49:08.69 |
+67:44:17.7 |
HIP 82336 |
8.68 |
| 2026-06-01 00:00 |
16:48:47.77 |
+67:44:43.8 |
HIP 82214 |
8.21 |
| 2026-06-01 12:00 |
16:48:26.82 |
+67:45:08.7 |
HIP 82214 |
6.60 |
| 2026-06-02 00:00 |
16:48:05.86 |
+67:45:32.3 |
HIP 82214 |
5.32 |