메타데이터
| 항목 |
값 |
| Designation |
C/1996 E1 (NEAT) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1996-07-27T08:19:31.935360Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:49Z |
| Obs used |
237 |
| NEO |
- |
| M1 |
12.500 |
| K1 |
8.750 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1996-05-17.0000000 |
| e |
1.00090859 |
| q (au) |
1.358954 |
| a (au) |
-1495.676752 |
| i (deg) |
114.475378 |
| Ω (om, deg) |
149.841392 |
| ω (w, deg) |
81.108042 |
| M (ma, deg) |
-0.001216 |
밝기
산란 + 전체 선형
$$
M_a = (8.349 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.349 |
| n |
6.000 |
| gf |
1.000 |
| 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) |
| 2026-03-26 00:00 |
21:26:19.86 |
-72:44:50.7 |
HIP 105781 |
10.02 |
| 2026-03-26 12:00 |
21:26:24.88 |
-72:45:08.0 |
HIP 105781 |
10.44 |
| 2026-03-27 00:00 |
21:26:29.86 |
-72:45:25.6 |
HIP 105781 |
10.86 |
| 2026-03-27 12:00 |
21:26:34.80 |
-72:45:43.4 |
HIP 105781 |
11.30 |
| 2026-03-28 00:00 |
21:26:39.69 |
-72:46:01.4 |
HIP 105781 |
11.73 |
| 2026-03-28 12:00 |
21:26:44.55 |
-72:46:19.6 |
HIP 105781 |
12.17 |
| 2026-03-29 00:00 |
21:26:49.36 |
-72:46:38.0 |
HIP 105781 |
12.61 |
| 2026-03-29 12:00 |
21:26:54.12 |
-72:46:56.5 |
HIP 105781 |
13.06 |
| 2026-03-30 00:00 |
21:26:58.84 |
-72:47:15.3 |
HIP 105781 |
13.51 |
| 2026-03-30 12:00 |
21:27:03.52 |
-72:47:34.2 |
HIP 105781 |
13.96 |
| 2026-03-31 00:00 |
21:27:08.15 |
-72:47:53.4 |
HIP 105781 |
14.41 |
| 2026-03-31 12:00 |
21:27:12.74 |
-72:48:12.7 |
HIP 105781 |
14.87 |
| 2026-04-01 00:00 |
21:27:17.29 |
-72:48:32.2 |
HIP 105781 |
15.32 |
| 2026-04-01 12:00 |
21:27:21.79 |
-72:48:51.9 |
HIP 106099 |
14.91 |
| 2026-04-02 00:00 |
21:27:26.24 |
-72:49:11.8 |
HIP 106099 |
14.44 |
| 2026-04-02 12:00 |
21:27:30.65 |
-72:49:31.9 |
HIP 106099 |
13.98 |
| 2026-04-03 00:00 |
21:27:35.01 |
-72:49:52.1 |
HIP 106099 |
13.51 |
| 2026-04-03 12:00 |
21:27:39.32 |
-72:50:12.6 |
HIP 106099 |
13.05 |
| 2026-04-04 00:00 |
21:27:43.59 |
-72:50:33.2 |
HIP 106099 |
12.58 |
| 2026-04-04 12:00 |
21:27:47.81 |
-72:50:54.0 |
HIP 106099 |
12.12 |
| 2026-04-05 00:00 |
21:27:51.99 |
-72:51:14.9 |
HIP 106099 |
11.65 |
| 2026-04-05 12:00 |
21:27:56.11 |
-72:51:36.1 |
HIP 106099 |
11.19 |
| 2026-04-06 00:00 |
21:28:00.19 |
-72:51:57.4 |
HIP 106099 |
10.72 |
| 2026-04-06 12:00 |
21:28:04.22 |
-72:52:18.9 |
HIP 106099 |
10.26 |
| 2026-04-07 00:00 |
21:28:08.20 |
-72:52:40.6 |
HIP 106099 |
9.79 |
| 2026-04-07 12:00 |
21:28:12.14 |
-72:53:02.4 |
HIP 106099 |
9.33 |
| 2026-04-08 00:00 |
21:28:16.02 |
-72:53:24.4 |
HIP 106099 |
8.86 |
| 2026-04-08 12:00 |
21:28:19.85 |
-72:53:46.6 |
HIP 106099 |
8.40 |
| 2026-04-09 00:00 |
21:28:23.64 |
-72:54:08.9 |
HIP 106099 |
7.93 |
| 2026-04-09 12:00 |
21:28:27.37 |
-72:54:31.5 |
HIP 106099 |
7.47 |
| 2026-04-10 00:00 |
21:28:31.06 |
-72:54:54.1 |
HIP 106099 |
7.00 |
| 2026-04-10 12:00 |
21:28:34.69 |
-72:55:17.0 |
HIP 106099 |
6.54 |
| 2026-04-11 00:00 |
21:28:38.27 |
-72:55:40.0 |
HIP 106099 |
6.08 |
| 2026-04-11 12:00 |
21:28:41.80 |
-72:56:03.2 |
HIP 106099 |
5.62 |
| 2026-04-12 00:00 |
21:28:45.28 |
-72:56:26.5 |
HIP 106099 |
5.15 |
| 2026-04-12 12:00 |
21:28:48.71 |
-72:56:50.0 |
HIP 106099 |
4.69 |
| 2026-04-13 00:00 |
21:28:52.08 |
-72:57:13.6 |
HIP 106099 |
4.24 |
| 2026-04-13 12:00 |
21:28:55.40 |
-72:57:37.4 |
HIP 106099 |
3.78 |
| 2026-04-14 00:00 |
21:28:58.67 |
-72:58:01.4 |
HIP 106099 |
3.33 |
| 2026-04-14 12:00 |
21:29:01.89 |
-72:58:25.5 |
HIP 106099 |
2.88 |
| 2026-04-15 00:00 |
21:29:05.05 |
-72:58:49.7 |
HIP 106099 |
2.45 |
| 2026-04-15 12:00 |
21:29:08.16 |
-72:59:14.1 |
HIP 106099 |
2.03 |
| 2026-04-16 00:00 |
21:29:11.21 |
-72:59:38.7 |
HIP 106099 |
1.63 |