368P/NEAT
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) |
| 2026-02-03 00:00 |
13:37:48.99 |
-23:56:11.6 |
HIP 66530 |
15.89 |
| 2026-02-03 12:00 |
13:37:47.89 |
-23:56:45.9 |
HIP 66530 |
16.51 |
| 2026-02-04 00:00 |
13:37:46.67 |
-23:57:19.4 |
HIP 66530 |
17.13 |
| 2026-02-04 12:00 |
13:37:45.33 |
-23:57:52.4 |
HIP 66530 |
17.76 |
| 2026-02-05 00:00 |
13:37:43.87 |
-23:58:24.6 |
HIP 66530 |
18.38 |
| 2026-02-05 12:00 |
13:37:42.29 |
-23:58:56.1 |
HIP 66530 |
19.00 |
| 2026-02-06 00:00 |
13:37:40.59 |
-23:59:27.0 |
HIP 66530 |
19.63 |
| 2026-02-06 12:00 |
13:37:38.77 |
-23:59:57.2 |
HIP 66530 |
20.25 |
| 2026-02-07 00:00 |
13:37:36.83 |
-24:00:26.6 |
HIP 66530 |
20.88 |
| 2026-02-07 12:00 |
13:37:34.77 |
-24:00:55.4 |
HIP 66530 |
21.51 |
| 2026-02-08 00:00 |
13:37:32.59 |
-24:01:23.5 |
HIP 66530 |
22.14 |
| 2026-02-08 12:00 |
13:37:30.29 |
-24:01:50.8 |
HIP 66530 |
22.78 |
| 2026-02-09 00:00 |
13:37:27.87 |
-24:02:17.4 |
HIP 66530 |
23.42 |
| 2026-02-09 12:00 |
13:37:25.33 |
-24:02:43.4 |
HIP 66530 |
24.07 |
| 2026-02-10 00:00 |
13:37:22.67 |
-24:03:08.5 |
HIP 66530 |
24.73 |
| 2026-02-10 12:00 |
13:37:19.89 |
-24:03:33.0 |
HIP 66530 |
25.39 |
| 2026-02-11 00:00 |
13:37:16.99 |
-24:03:56.7 |
HIP 66530 |
26.06 |
| 2026-02-11 12:00 |
13:37:13.97 |
-24:04:19.7 |
HIP 66530 |
26.74 |
| 2026-02-12 00:00 |
13:37:10.84 |
-24:04:42.0 |
HIP 66530 |
27.43 |
| 2026-02-12 12:00 |
13:37:07.58 |
-24:05:03.5 |
HIP 66433 |
28.11 |
| 2026-02-13 00:00 |
13:37:04.21 |
-24:05:24.2 |
HIP 66433 |
28.49 |
| 2026-02-13 12:00 |
13:37:00.71 |
-24:05:44.2 |
HIP 66363 |
28.83 |
| 2026-02-14 00:00 |
13:36:57.10 |
-24:06:03.5 |
HIP 66363 |
28.82 |
| 2026-02-14 12:00 |
13:36:53.37 |
-24:06:22.0 |
HIP 66363 |
28.81 |
| 2026-02-15 00:00 |
13:36:49.52 |
-24:06:39.7 |
HIP 66363 |
28.80 |
| 2026-02-15 12:00 |
13:36:45.56 |
-24:06:56.7 |
HIP 66363 |
28.81 |
| 2026-02-16 00:00 |
13:36:41.47 |
-24:07:12.8 |
HIP 66363 |
28.83 |
| 2026-02-16 12:00 |
13:36:37.27 |
-24:07:28.3 |
HIP 66363 |
28.87 |
| 2026-02-17 00:00 |
13:36:32.95 |
-24:07:42.9 |
HIP 66363 |
28.92 |
| 2026-02-17 12:00 |
13:36:28.52 |
-24:07:56.8 |
HIP 66363 |
28.99 |
| 2026-02-18 00:00 |
13:36:23.97 |
-24:08:09.8 |
HIP 66363 |
29.08 |
| 2026-02-18 12:00 |
13:36:19.30 |
-24:08:22.1 |
HIP 66363 |
29.20 |
| 2026-02-19 00:00 |
13:36:14.52 |
-24:08:33.6 |
HIP 66363 |
29.34 |
| 2026-02-19 12:00 |
13:36:09.62 |
-24:08:44.3 |
HIP 66363 |
29.51 |
| 2026-02-20 00:00 |
13:36:04.61 |
-24:08:54.2 |
HIP 66363 |
29.71 |
| 2026-02-20 12:00 |
13:35:59.49 |
-24:09:03.3 |
HIP 66363 |
29.94 |
| 2026-02-21 00:00 |
13:35:54.25 |
-24:09:11.7 |
HIP 66363 |
30.21 |
| 2026-02-21 12:00 |
13:35:48.90 |
-24:09:19.2 |
HIP 66363 |
30.51 |
| 2026-02-22 00:00 |
13:35:43.44 |
-24:09:25.9 |
HIP 66363 |
30.85 |
| 2026-02-22 12:00 |
13:35:37.87 |
-24:09:31.8 |
HIP 66363 |
31.23 |
| 2026-02-23 00:00 |
13:35:32.18 |
-24:09:36.9 |
HIP 66363 |
31.66 |
| 2026-02-23 12:00 |
13:35:26.39 |
-24:09:41.2 |
HIP 66363 |
32.12 |
| 2026-02-24 00:00 |
13:35:20.48 |
-24:09:44.6 |
HIP 66363 |
32.63 |