메타데이터
| 항목 |
값 |
| Designation |
368P/NEAT |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2018-09-09T00:50:13.459200Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:28:37Z |
| Obs used |
784 |
| NEO |
- |
| M1 |
14.600 |
| K1 |
8.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2018-06-13T04:32:59.712000Z |
| Discovery magnitude (MPC) |
19.40 N |
| Discovery observatory (MPC) |
J04 · ESA Optical Ground Station, Tenerife |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2012-06-05.0000000 |
| e |
0.62854670 |
| q (au) |
2.044313 |
| a (au) |
5.503554 |
| i (deg) |
15.447948 |
| Ω (om, deg) |
258.165998 |
| ω (w, deg) |
118.808346 |
| M (ma, deg) |
185.412933 |
밝기
산란 + 전체 선형
$$
M_a = (16.295 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.295 |
| n |
2.000 |
| gf |
0.871 |
| gb |
-0.721 |
| k |
0.940 |
| δ90 |
1.000 |
| 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 |
13:26:34.57 |
-23:47:53.0 |
HIP 65574 |
29.73 |
| 2026-03-26 12:00 |
13:26:23.57 |
-23:47:06.1 |
HIP 65574 |
30.71 |
| 2026-03-27 00:00 |
13:26:12.52 |
-23:46:18.4 |
HIP 65574 |
31.90 |
| 2026-03-27 12:00 |
13:26:01.43 |
-23:45:30.0 |
HIP 65568 |
32.58 |
| 2026-03-28 00:00 |
13:25:50.29 |
-23:44:40.8 |
HIP 65568 |
32.52 |
| 2026-03-28 12:00 |
13:25:39.10 |
-23:43:50.8 |
HIP 65568 |
32.67 |
| 2026-03-29 00:00 |
13:25:27.88 |
-23:43:00.1 |
HIP 65568 |
33.04 |
| 2026-03-29 12:00 |
13:25:16.61 |
-23:42:08.7 |
HIP 65568 |
33.62 |
| 2026-03-30 00:00 |
13:25:05.31 |
-23:41:16.5 |
HIP 65568 |
34.39 |
| 2026-03-30 12:00 |
13:24:53.96 |
-23:40:23.6 |
HIP 65568 |
35.36 |
| 2026-03-31 00:00 |
13:24:42.58 |
-23:39:30.0 |
HIP 65568 |
36.51 |
| 2026-03-31 12:00 |
13:24:31.17 |
-23:38:35.6 |
HIP 65568 |
37.83 |
| 2026-04-01 00:00 |
13:24:19.72 |
-23:37:40.5 |
HIP 65568 |
39.29 |
| 2026-04-01 12:00 |
13:24:08.24 |
-23:36:44.7 |
HIP 65568 |
40.90 |
| 2026-04-02 00:00 |
13:23:56.72 |
-23:35:48.2 |
HIP 65568 |
42.62 |
| 2026-04-02 12:00 |
13:23:45.18 |
-23:34:51.0 |
HIP 65269 |
41.11 |
| 2026-04-03 00:00 |
13:23:33.61 |
-23:33:53.0 |
HIP 65269 |
39.22 |
| 2026-04-03 12:00 |
13:23:22.01 |
-23:32:54.4 |
HIP 65269 |
37.44 |
| 2026-04-04 00:00 |
13:23:10.38 |
-23:31:55.1 |
HIP 65269 |
35.78 |
| 2026-04-04 12:00 |
13:22:58.73 |
-23:30:55.1 |
HIP 65124 |
33.99 |
| 2026-04-05 00:00 |
13:22:47.06 |
-23:29:54.4 |
HIP 65124 |
32.10 |
| 2026-04-05 12:00 |
13:22:35.37 |
-23:28:53.1 |
HIP 65124 |
30.36 |
| 2026-04-06 00:00 |
13:22:23.65 |
-23:27:51.1 |
HIP 65124 |
28.81 |
| 2026-04-06 12:00 |
13:22:11.92 |
-23:26:48.4 |
HIP 65124 |
27.47 |
| 2026-04-07 00:00 |
13:22:00.17 |
-23:25:45.1 |
HIP 65124 |
26.39 |
| 2026-04-07 12:00 |
13:21:48.40 |
-23:24:41.1 |
HIP 65124 |
25.59 |
| 2026-04-08 00:00 |
13:21:36.62 |
-23:23:36.5 |
HIP 65124 |
25.12 |
| 2026-04-08 12:00 |
13:21:24.83 |
-23:22:31.3 |
HIP 65124 |
24.98 |
| 2026-04-09 00:00 |
13:21:13.03 |
-23:21:25.4 |
HIP 65124 |
25.20 |
| 2026-04-09 12:00 |
13:21:01.21 |
-23:20:18.9 |
HIP 65124 |
25.75 |
| 2026-04-10 00:00 |
13:20:49.39 |
-23:19:11.8 |
HIP 65124 |
26.63 |
| 2026-04-10 12:00 |
13:20:37.56 |
-23:18:04.1 |
HIP 64962 |
24.76 |
| 2026-04-11 00:00 |
13:20:25.72 |
-23:16:55.7 |
HIP 64962 |
21.82 |
| 2026-04-11 12:00 |
13:20:13.88 |
-23:15:46.8 |
HIP 64962 |
18.88 |
| 2026-04-12 00:00 |
13:20:02.04 |
-23:14:37.3 |
HIP 64962 |
15.95 |
| 2026-04-12 12:00 |
13:19:50.19 |
-23:13:27.3 |
HIP 64962 |
13.02 |
| 2026-04-13 00:00 |
13:19:38.35 |
-23:12:16.6 |
HIP 64962 |
10.10 |
| 2026-04-13 12:00 |
13:19:26.51 |
-23:11:05.4 |
HIP 64962 |
7.23 |
| 2026-04-14 00:00 |
13:19:14.67 |
-23:09:53.7 |
HIP 64962 |
4.48 |
| 2026-04-14 12:00 |
13:19:02.84 |
-23:08:41.4 |
HIP 64962 |
2.36 |
| 2026-04-15 00:00 |
13:18:51.01 |
-23:07:28.5 |
HIP 64962 |
2.97 |
| 2026-04-15 12:00 |
13:18:39.19 |
-23:06:15.1 |
HIP 64962 |
5.47 |
| 2026-04-16 00:00 |
13:18:27.38 |
-23:05:01.3 |
HIP 64962 |
8.29 |