메타데이터
| 항목 |
값 |
| Designation |
C/2016 E1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2017-06-01T02:58:04.794240Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:23Z |
| Obs used |
166 |
| NEO |
- |
| M1 |
6.900 |
| K1 |
9.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2017-04-09.0000000 |
| e |
1.00315620 |
| q (au) |
8.176818 |
| a (au) |
-2590.718500 |
| i (deg) |
131.890641 |
| Ω (om, deg) |
233.034543 |
| ω (w, deg) |
47.290330 |
| M (ma, deg) |
-0.000397 |
밝기
산란 + 전체 선형
$$
M_a = (0.858 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
0.858 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-0.500 |
| 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) |
| 2026-05-12 00:00 |
04:44:32.98 |
+45:53:40.2 |
HIP 21947 |
22.43 |
| 2026-05-12 12:00 |
04:44:39.57 |
+45:53:22.7 |
HIP 21947 |
23.06 |
| 2026-05-13 00:00 |
04:44:46.18 |
+45:53:05.4 |
HIP 21947 |
23.74 |
| 2026-05-13 12:00 |
04:44:52.81 |
+45:52:48.5 |
HIP 21947 |
24.46 |
| 2026-05-14 00:00 |
04:44:59.47 |
+45:52:31.9 |
HIP 22246 |
25.02 |
| 2026-05-14 12:00 |
04:45:06.14 |
+45:52:15.5 |
HIP 22246 |
23.98 |
| 2026-05-15 00:00 |
04:45:12.83 |
+45:51:59.4 |
HIP 22246 |
22.95 |
| 2026-05-15 12:00 |
04:45:19.54 |
+45:51:43.7 |
HIP 22246 |
21.94 |
| 2026-05-16 00:00 |
04:45:26.27 |
+45:51:28.2 |
HIP 22246 |
20.94 |
| 2026-05-16 12:00 |
04:45:33.01 |
+45:51:13.0 |
HIP 22246 |
19.95 |
| 2026-05-17 00:00 |
04:45:39.78 |
+45:50:58.1 |
HIP 22246 |
18.99 |
| 2026-05-17 12:00 |
04:45:46.56 |
+45:50:43.5 |
HIP 22246 |
18.04 |
| 2026-05-18 00:00 |
04:45:53.35 |
+45:50:29.2 |
HIP 22246 |
17.13 |
| 2026-05-18 12:00 |
04:46:00.16 |
+45:50:15.2 |
HIP 22246 |
16.25 |
| 2026-05-19 00:00 |
04:46:06.98 |
+45:50:01.4 |
HIP 22246 |
15.41 |
| 2026-05-19 12:00 |
04:46:13.82 |
+45:49:48.0 |
HIP 22246 |
14.61 |
| 2026-05-20 00:00 |
04:46:20.68 |
+45:49:34.8 |
HIP 22246 |
13.87 |
| 2026-05-20 12:00 |
04:46:27.54 |
+45:49:22.0 |
HIP 22246 |
13.19 |
| 2026-05-21 00:00 |
04:46:34.42 |
+45:49:09.4 |
HIP 22246 |
12.59 |
| 2026-05-21 12:00 |
04:46:41.31 |
+45:48:57.1 |
HIP 22246 |
12.08 |
| 2026-05-22 00:00 |
04:46:48.21 |
+45:48:45.0 |
HIP 22246 |
11.67 |
| 2026-05-22 12:00 |
04:46:55.12 |
+45:48:33.3 |
HIP 22246 |
11.37 |
| 2026-05-23 00:00 |
04:47:02.05 |
+45:48:21.8 |
HIP 22246 |
11.18 |
| 2026-05-23 12:00 |
04:47:08.98 |
+45:48:10.6 |
HIP 22246 |
11.13 |
| 2026-05-24 00:00 |
04:47:15.92 |
+45:47:59.7 |
HIP 22246 |
11.20 |
| 2026-05-24 12:00 |
04:47:22.87 |
+45:47:49.1 |
HIP 22246 |
11.40 |
| 2026-05-25 00:00 |
04:47:29.83 |
+45:47:38.8 |
HIP 22246 |
11.72 |
| 2026-05-25 12:00 |
04:47:36.80 |
+45:47:28.7 |
HIP 22246 |
12.15 |
| 2026-05-26 00:00 |
04:47:43.78 |
+45:47:18.9 |
HIP 22246 |
12.68 |
| 2026-05-26 12:00 |
04:47:50.76 |
+45:47:09.4 |
HIP 22261 |
13.09 |
| 2026-05-27 00:00 |
04:47:57.75 |
+45:47:00.2 |
HIP 22261 |
13.53 |
| 2026-05-27 12:00 |
04:48:04.74 |
+45:46:51.2 |
HIP 22261 |
14.07 |
| 2026-05-28 00:00 |
04:48:11.75 |
+45:46:42.5 |
HIP 22261 |
14.68 |
| 2026-05-28 12:00 |
04:48:18.75 |
+45:46:34.1 |
HIP 22261 |
15.37 |
| 2026-05-29 00:00 |
04:48:25.76 |
+45:46:26.0 |
HIP 22261 |
16.11 |
| 2026-05-29 12:00 |
04:48:32.78 |
+45:46:18.1 |
HIP 22261 |
16.91 |
| 2026-05-30 00:00 |
04:48:39.80 |
+45:46:10.5 |
HIP 22261 |
17.76 |
| 2026-05-30 12:00 |
04:48:46.82 |
+45:46:03.2 |
HIP 22261 |
18.64 |
| 2026-05-31 00:00 |
04:48:53.85 |
+45:45:56.1 |
HIP 22261 |
19.56 |
| 2026-05-31 12:00 |
04:49:00.88 |
+45:45:49.3 |
HIP 22284 |
20.26 |
| 2026-06-01 00:00 |
04:49:07.91 |
+45:45:42.8 |
HIP 22284 |
20.91 |
| 2026-06-01 12:00 |
04:49:14.94 |
+45:45:36.5 |
HIP 22284 |
21.62 |
| 2026-06-02 00:00 |
04:49:21.97 |
+45:45:30.5 |
HIP 22284 |
22.38 |