메타데이터
| 항목 |
값 |
| Designation |
C/2014 W3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2014-02-27T04:51:52.917120Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:02Z |
| Obs used |
47 |
| NEO |
- |
| M1 |
8.900 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2015-03-21.0000000 |
| e |
1.00695932 |
| q (au) |
6.066200 |
| a (au) |
-871.665470 |
| i (deg) |
90.112871 |
| Ω (om, deg) |
286.373358 |
| ω (w, deg) |
158.916349 |
| M (ma, deg) |
0.014814 |
밝기
산란 + 전체 선형
$$
M_a = (11.948 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.948 |
| n |
2.000 |
| gf |
0.999 |
| 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) |
| 2026-03-26 00:00 |
04:41:30.89 |
-74:40:33.1 |
HIP 21968 |
7.18 |
| 2026-03-26 12:00 |
04:41:36.39 |
-74:39:36.8 |
HIP 21968 |
6.76 |
| 2026-03-27 00:00 |
04:41:42.01 |
-74:38:40.8 |
HIP 21968 |
6.45 |
| 2026-03-27 12:00 |
04:41:47.77 |
-74:37:44.9 |
HIP 21968 |
6.28 |
| 2026-03-28 00:00 |
04:41:53.64 |
-74:36:49.4 |
HIP 21968 |
6.26 |
| 2026-03-28 12:00 |
04:41:59.65 |
-74:35:54.1 |
HIP 21968 |
6.39 |
| 2026-03-29 00:00 |
04:42:05.77 |
-74:34:59.1 |
HIP 21968 |
6.66 |
| 2026-03-29 12:00 |
04:42:12.02 |
-74:34:04.3 |
HIP 21968 |
7.05 |
| 2026-03-30 00:00 |
04:42:18.40 |
-74:33:09.8 |
HIP 21968 |
7.55 |
| 2026-03-30 12:00 |
04:42:24.89 |
-74:32:15.6 |
HIP 21968 |
8.13 |
| 2026-03-31 00:00 |
04:42:31.51 |
-74:31:21.7 |
HIP 21968 |
8.78 |
| 2026-03-31 12:00 |
04:42:38.24 |
-74:30:28.0 |
HIP 21968 |
9.49 |
| 2026-04-01 00:00 |
04:42:45.10 |
-74:29:34.6 |
HIP 21968 |
10.24 |
| 2026-04-01 12:00 |
04:42:52.07 |
-74:28:41.6 |
HIP 21968 |
11.02 |
| 2026-04-02 00:00 |
04:42:59.16 |
-74:27:48.8 |
HIP 21968 |
11.83 |
| 2026-04-02 12:00 |
04:43:06.37 |
-74:26:56.3 |
HIP 21968 |
12.66 |
| 2026-04-03 00:00 |
04:43:13.69 |
-74:26:04.1 |
HIP 21968 |
13.51 |
| 2026-04-03 12:00 |
04:43:21.12 |
-74:25:12.2 |
HIP 21968 |
14.37 |
| 2026-04-04 00:00 |
04:43:28.67 |
-74:24:20.6 |
HIP 21968 |
15.24 |
| 2026-04-04 12:00 |
04:43:36.34 |
-74:23:29.3 |
HIP 21968 |
16.13 |
| 2026-04-05 00:00 |
04:43:44.11 |
-74:22:38.3 |
HIP 21968 |
17.02 |
| 2026-04-05 12:00 |
04:43:52.00 |
-74:21:47.6 |
HIP 21968 |
17.92 |
| 2026-04-06 00:00 |
04:44:00.00 |
-74:20:57.3 |
HIP 21968 |
18.82 |
| 2026-04-06 12:00 |
04:44:08.11 |
-74:20:07.3 |
HIP 21968 |
19.73 |
| 2026-04-07 00:00 |
04:44:16.32 |
-74:19:17.6 |
HIP 21968 |
20.64 |
| 2026-04-07 12:00 |
04:44:24.65 |
-74:18:28.2 |
HIP 21968 |
21.56 |
| 2026-04-08 00:00 |
04:44:33.08 |
-74:17:39.2 |
HIP 22248 |
22.12 |
| 2026-04-08 12:00 |
04:44:41.62 |
-74:16:50.5 |
HIP 22248 |
22.55 |
| 2026-04-09 00:00 |
04:44:50.26 |
-74:16:02.1 |
HIP 22219 |
22.33 |
| 2026-04-09 12:00 |
04:44:59.01 |
-74:15:14.1 |
HIP 22219 |
21.38 |
| 2026-04-10 00:00 |
04:45:07.86 |
-74:14:26.4 |
HIP 22219 |
20.43 |
| 2026-04-10 12:00 |
04:45:16.82 |
-74:13:39.1 |
HIP 22219 |
19.49 |
| 2026-04-11 00:00 |
04:45:25.87 |
-74:12:52.1 |
HIP 22219 |
18.55 |
| 2026-04-11 12:00 |
04:45:35.03 |
-74:12:05.5 |
HIP 22219 |
17.63 |
| 2026-04-12 00:00 |
04:45:44.29 |
-74:11:19.2 |
HIP 22219 |
16.72 |
| 2026-04-12 12:00 |
04:45:53.65 |
-74:10:33.3 |
HIP 22219 |
15.83 |
| 2026-04-13 00:00 |
04:46:03.11 |
-74:09:47.7 |
HIP 22219 |
14.95 |
| 2026-04-13 12:00 |
04:46:12.67 |
-74:09:02.5 |
HIP 22219 |
14.10 |
| 2026-04-14 00:00 |
04:46:22.33 |
-74:08:17.7 |
HIP 22219 |
13.27 |
| 2026-04-14 12:00 |
04:46:32.08 |
-74:07:33.3 |
HIP 22219 |
12.47 |
| 2026-04-15 00:00 |
04:46:41.92 |
-74:06:49.2 |
HIP 22219 |
11.71 |
| 2026-04-15 12:00 |
04:46:51.87 |
-74:06:05.5 |
HIP 22219 |
10.99 |
| 2026-04-16 00:00 |
04:47:01.90 |
-74:05:22.2 |
HIP 22219 |
10.33 |