메타데이터
| 항목 |
값 |
| Designation |
C/2014 U3 (Kowalski) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2014-09-02T20:08:26.016000Z |
| Orbit solution date (soln_date, UTC) |
2022-08-01T03:23:53Z |
| Obs used |
51 |
| NEO |
- |
| M1 |
5.200 |
| K1 |
29.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-10-13.0000000 |
| e |
0.99332244 |
| q (au) |
2.555822 |
| a (au) |
382.748050 |
| i (deg) |
152.993159 |
| Ω (om, deg) |
163.558521 |
| ω (w, deg) |
51.065952 |
| M (ma, deg) |
0.005286 |
밝기
산란 + 전체 선형
$$
M_a = (10.351 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.351 |
| 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) |
| 2026-07-29 00:00 |
22:21:07.03 |
-18:06:32.5 |
HIP 110379 |
24.15 |
| 2026-07-29 12:00 |
22:21:02.80 |
-18:07:02.5 |
HIP 110379 |
23.85 |
| 2026-07-30 00:00 |
22:20:58.55 |
-18:07:32.6 |
HIP 110379 |
23.59 |
| 2026-07-30 12:00 |
22:20:54.28 |
-18:08:02.7 |
HIP 110379 |
23.40 |
| 2026-07-31 00:00 |
22:20:50.00 |
-18:08:32.9 |
HIP 110379 |
23.25 |
| 2026-07-31 12:00 |
22:20:45.70 |
-18:09:03.0 |
HIP 110379 |
23.16 |
| 2026-08-01 00:00 |
22:20:41.38 |
-18:09:33.1 |
HIP 110379 |
23.13 |
| 2026-08-01 12:00 |
22:20:37.04 |
-18:10:03.3 |
HIP 110379 |
23.16 |
| 2026-08-02 00:00 |
22:20:32.69 |
-18:10:33.5 |
HIP 110379 |
23.24 |
| 2026-08-02 12:00 |
22:20:28.33 |
-18:11:03.7 |
HIP 110379 |
23.39 |
| 2026-08-03 00:00 |
22:20:23.94 |
-18:11:33.9 |
HIP 110379 |
23.59 |
| 2026-08-03 12:00 |
22:20:19.55 |
-18:12:04.0 |
HIP 110379 |
23.84 |
| 2026-08-04 00:00 |
22:20:15.13 |
-18:12:34.2 |
HIP 110379 |
24.16 |
| 2026-08-04 12:00 |
22:20:10.71 |
-18:13:04.4 |
HIP 110379 |
24.52 |
| 2026-08-05 00:00 |
22:20:06.27 |
-18:13:34.6 |
HIP 110379 |
24.94 |
| 2026-08-05 12:00 |
22:20:01.81 |
-18:14:04.8 |
HIP 110379 |
25.41 |
| 2026-08-06 00:00 |
22:19:57.34 |
-18:14:35.0 |
HIP 110379 |
25.92 |
| 2026-08-06 12:00 |
22:19:52.86 |
-18:15:05.2 |
HIP 110379 |
26.48 |
| 2026-08-07 00:00 |
22:19:48.36 |
-18:15:35.3 |
HIP 110379 |
27.08 |
| 2026-08-07 12:00 |
22:19:43.85 |
-18:16:05.5 |
HIP 110379 |
27.72 |
| 2026-08-08 00:00 |
22:19:39.33 |
-18:16:35.6 |
HIP 110379 |
28.40 |
| 2026-08-08 12:00 |
22:19:34.80 |
-18:17:05.7 |
HIP 110379 |
29.11 |
| 2026-08-09 00:00 |
22:19:30.25 |
-18:17:35.8 |
HIP 110063 |
29.01 |
| 2026-08-09 12:00 |
22:19:25.69 |
-18:18:05.9 |
HIP 110063 |
28.11 |
| 2026-08-10 00:00 |
22:19:21.13 |
-18:18:35.9 |
HIP 110063 |
27.24 |
| 2026-08-10 12:00 |
22:19:16.55 |
-18:19:06.0 |
HIP 110063 |
26.39 |
| 2026-08-11 00:00 |
22:19:11.96 |
-18:19:35.9 |
HIP 110063 |
25.56 |
| 2026-08-11 12:00 |
22:19:07.36 |
-18:20:05.9 |
HIP 110063 |
24.76 |
| 2026-08-12 00:00 |
22:19:02.75 |
-18:20:35.8 |
HIP 110063 |
23.99 |
| 2026-08-12 12:00 |
22:18:58.13 |
-18:21:05.7 |
HIP 110063 |
23.26 |
| 2026-08-13 00:00 |
22:18:53.50 |
-18:21:35.6 |
HIP 110063 |
22.57 |
| 2026-08-13 12:00 |
22:18:48.87 |
-18:22:05.4 |
HIP 110063 |
21.92 |
| 2026-08-14 00:00 |
22:18:44.22 |
-18:22:35.2 |
HIP 110063 |
21.31 |
| 2026-08-14 12:00 |
22:18:39.57 |
-18:23:04.9 |
HIP 110063 |
20.76 |
| 2026-08-15 00:00 |
22:18:34.91 |
-18:23:34.6 |
HIP 110063 |
20.26 |
| 2026-08-15 12:00 |
22:18:30.24 |
-18:24:04.2 |
HIP 110063 |
19.82 |
| 2026-08-16 00:00 |
22:18:25.57 |
-18:24:33.8 |
HIP 110063 |
19.45 |
| 2026-08-16 12:00 |
22:18:20.89 |
-18:25:03.3 |
HIP 110063 |
19.14 |
| 2026-08-17 00:00 |
22:18:16.21 |
-18:25:32.8 |
HIP 110063 |
18.91 |
| 2026-08-17 12:00 |
22:18:11.51 |
-18:26:02.2 |
HIP 110063 |
18.75 |
| 2026-08-18 00:00 |
22:18:06.82 |
-18:26:31.5 |
HIP 110063 |
18.66 |
| 2026-08-18 12:00 |
22:18:02.12 |
-18:27:00.8 |
HIP 110063 |
18.66 |
| 2026-08-19 00:00 |
22:17:57.41 |
-18:27:30.1 |
HIP 110063 |
18.73 |