메타데이터
| 항목 |
값 |
| Designation |
344P/Read |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2006-01-10T17:39:03.035520Z |
| Orbit solution date (soln_date, UTC) |
2023-05-03T22:44:48Z |
| Obs used |
535 |
| NEO |
- |
| M1 |
5.300 |
| K1 |
25.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2010-12-08.0000000 |
| e |
0.42197889 |
| q (au) |
2.824924 |
| a (au) |
4.887234 |
| i (deg) |
3.483249 |
| Ω (om, deg) |
273.290163 |
| ω (w, deg) |
140.373304 |
| M (ma, deg) |
163.497658 |
밝기
산란 + 전체 선형
$$
M_a = (15.247 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.247 |
| n |
2.000 |
| gf |
0.966 |
| gb |
-0.500 |
| k |
0.800 |
| δ90 |
1.997 |
| 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) |
| 2026-07-29 00:00 |
23:14:31.42 |
-00:27:18.4 |
HIP 114609 |
21.61 |
| 2026-07-29 12:00 |
23:14:25.24 |
-00:27:18.1 |
HIP 114609 |
20.07 |
| 2026-07-30 00:00 |
23:14:18.83 |
-00:27:19.4 |
HIP 114609 |
18.47 |
| 2026-07-30 12:00 |
23:14:12.17 |
-00:27:22.4 |
HIP 114609 |
16.81 |
| 2026-07-31 00:00 |
23:14:05.27 |
-00:27:26.9 |
HIP 114609 |
15.10 |
| 2026-07-31 12:00 |
23:13:58.14 |
-00:27:33.2 |
HIP 114609 |
13.34 |
| 2026-08-01 00:00 |
23:13:50.77 |
-00:27:41.0 |
HIP 114609 |
11.53 |
| 2026-08-01 12:00 |
23:13:43.16 |
-00:27:50.5 |
HIP 114609 |
9.67 |
| 2026-08-02 00:00 |
23:13:35.32 |
-00:28:01.6 |
HIP 114609 |
7.80 |
| 2026-08-02 12:00 |
23:13:27.24 |
-00:28:14.4 |
HIP 114609 |
5.94 |
| 2026-08-03 00:00 |
23:13:18.93 |
-00:28:28.8 |
HIP 114609 |
4.21 |
| 2026-08-03 12:00 |
23:13:10.38 |
-00:28:44.8 |
HIP 114609 |
2.98 |
| 2026-08-04 00:00 |
23:13:01.60 |
-00:29:02.5 |
HIP 114609 |
3.10 |
| 2026-08-04 12:00 |
23:12:52.59 |
-00:29:21.8 |
HIP 114609 |
4.55 |
| 2026-08-05 00:00 |
23:12:43.35 |
-00:29:42.7 |
HIP 114609 |
6.55 |
| 2026-08-05 12:00 |
23:12:33.88 |
-00:30:05.3 |
HIP 114609 |
8.78 |
| 2026-08-06 00:00 |
23:12:24.19 |
-00:30:29.5 |
HIP 114609 |
11.15 |
| 2026-08-06 12:00 |
23:12:14.26 |
-00:30:55.4 |
HIP 114609 |
13.61 |
| 2026-08-07 00:00 |
23:12:04.11 |
-00:31:22.9 |
HIP 114609 |
16.15 |
| 2026-08-07 12:00 |
23:11:53.73 |
-00:31:52.0 |
HIP 114609 |
18.76 |
| 2026-08-08 00:00 |
23:11:43.13 |
-00:32:22.7 |
HIP 114609 |
21.45 |
| 2026-08-08 12:00 |
23:11:32.31 |
-00:32:55.1 |
HIP 114609 |
24.19 |
| 2026-08-09 00:00 |
23:11:21.27 |
-00:33:29.1 |
HIP 114609 |
27.00 |
| 2026-08-09 12:00 |
23:11:10.01 |
-00:34:04.7 |
HIP 114609 |
29.87 |
| 2026-08-10 00:00 |
23:10:58.54 |
-00:34:41.9 |
HIP 114609 |
32.80 |
| 2026-08-10 12:00 |
23:10:46.84 |
-00:35:20.7 |
HIP 114517 |
35.47 |
| 2026-08-11 00:00 |
23:10:34.94 |
-00:36:01.1 |
HIP 114260 |
32.78 |
| 2026-08-11 12:00 |
23:10:22.83 |
-00:36:43.1 |
HIP 114260 |
29.96 |
| 2026-08-12 00:00 |
23:10:10.51 |
-00:37:26.6 |
HIP 114260 |
27.16 |
| 2026-08-12 12:00 |
23:09:57.98 |
-00:38:11.7 |
HIP 114260 |
24.41 |
| 2026-08-13 00:00 |
23:09:45.25 |
-00:38:58.4 |
HIP 114260 |
21.75 |
| 2026-08-13 12:00 |
23:09:32.32 |
-00:39:46.7 |
HIP 114260 |
19.25 |
| 2026-08-14 00:00 |
23:09:19.19 |
-00:40:36.4 |
HIP 114260 |
17.02 |
| 2026-08-14 12:00 |
23:09:05.86 |
-00:41:27.7 |
HIP 114260 |
15.20 |
| 2026-08-15 00:00 |
23:08:52.34 |
-00:42:20.5 |
HIP 114260 |
14.01 |
| 2026-08-15 12:00 |
23:08:38.63 |
-00:43:14.8 |
HIP 114260 |
13.64 |
| 2026-08-16 00:00 |
23:08:24.74 |
-00:44:10.6 |
HIP 114260 |
14.21 |
| 2026-08-16 12:00 |
23:08:10.65 |
-00:45:07.9 |
HIP 114260 |
15.64 |
| 2026-08-17 00:00 |
23:07:56.39 |
-00:46:06.6 |
HIP 114260 |
17.76 |
| 2026-08-17 12:00 |
23:07:41.95 |
-00:47:06.8 |
HIP 114260 |
20.38 |
| 2026-08-18 00:00 |
23:07:27.33 |
-00:48:08.5 |
HIP 114260 |
23.36 |
| 2026-08-18 12:00 |
23:07:12.54 |
-00:49:11.5 |
HIP 114260 |
26.59 |
| 2026-08-19 00:00 |
23:06:57.58 |
-00:50:15.9 |
HIP 114260 |
30.02 |