메타데이터
| 항목 |
값 |
| Designation |
C/2017 B3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2019-02-02T14:22:55.968960Z |
| Orbit solution date (soln_date, UTC) |
2022-07-31T01:42:28Z |
| Obs used |
1591 |
| NEO |
- |
| M1 |
6.300 |
| K1 |
9.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2019-11-01.0000000 |
| e |
1.00205503 |
| q (au) |
3.921429 |
| a (au) |
-1908.207887 |
| i (deg) |
54.177778 |
| Ω (om, deg) |
2.178286 |
| ω (w, deg) |
284.767790 |
| M (ma, deg) |
0.003209 |
밝기
산란 + 전체 선형
$$
M_a = (8.267 + 4.444\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.267 |
| n |
4.444 |
| gf |
1.000 |
| gb |
-0.790 |
| k |
0.800 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2016-03-04 |
2017-03-10 |
+20.0904 |
-16.483 |
| 2017-03-10 |
2019-02-01 |
+0.1708 |
+0.419 |
| 2019-03-27 |
2019-11-19 |
-14.3328 |
+9.294 |
| 2019-11-19 |
2020-11-13 |
+1.1970 |
-1.243 |
| 2020-11-13 |
2022-01-01 |
+11.4957 |
-9.995 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
01:13:51.40 |
+47:10:46.7 |
HIP 5677 |
9.19 |
| 2026-05-12 12:00 |
01:13:59.17 |
+47:11:54.7 |
HIP 5677 |
10.46 |
| 2026-05-13 00:00 |
01:14:06.90 |
+47:13:03.0 |
HIP 5677 |
11.84 |
| 2026-05-13 12:00 |
01:14:14.60 |
+47:14:11.5 |
HIP 5677 |
13.30 |
| 2026-05-14 00:00 |
01:14:22.27 |
+47:15:20.3 |
HIP 5677 |
14.82 |
| 2026-05-14 12:00 |
01:14:29.90 |
+47:16:29.3 |
HIP 5677 |
16.38 |
| 2026-05-15 00:00 |
01:14:37.50 |
+47:17:38.6 |
HIP 5820 |
15.35 |
| 2026-05-15 12:00 |
01:14:45.07 |
+47:18:48.2 |
HIP 5820 |
14.20 |
| 2026-05-16 00:00 |
01:14:52.59 |
+47:19:58.0 |
HIP 5820 |
13.16 |
| 2026-05-16 12:00 |
01:15:00.08 |
+47:21:08.1 |
HIP 5820 |
12.28 |
| 2026-05-17 00:00 |
01:15:07.54 |
+47:22:18.4 |
HIP 5820 |
11.58 |
| 2026-05-17 12:00 |
01:15:14.96 |
+47:23:29.0 |
HIP 5820 |
11.10 |
| 2026-05-18 00:00 |
01:15:22.34 |
+47:24:39.8 |
HIP 5820 |
10.86 |
| 2026-05-18 12:00 |
01:15:29.68 |
+47:25:50.9 |
HIP 5820 |
10.88 |
| 2026-05-19 00:00 |
01:15:36.98 |
+47:27:02.2 |
HIP 5820 |
11.17 |
| 2026-05-19 12:00 |
01:15:44.25 |
+47:28:13.7 |
HIP 5820 |
11.69 |
| 2026-05-20 00:00 |
01:15:51.47 |
+47:29:25.4 |
HIP 5820 |
12.42 |
| 2026-05-20 12:00 |
01:15:58.66 |
+47:30:37.4 |
HIP 5820 |
13.32 |
| 2026-05-21 00:00 |
01:16:05.80 |
+47:31:49.6 |
HIP 5820 |
14.36 |
| 2026-05-21 12:00 |
01:16:12.91 |
+47:33:02.0 |
HIP 5820 |
15.51 |
| 2026-05-22 00:00 |
01:16:19.97 |
+47:34:14.6 |
HIP 5820 |
16.74 |
| 2026-05-22 12:00 |
01:16:26.99 |
+47:35:27.5 |
HIP 6073 |
16.21 |
| 2026-05-23 00:00 |
01:16:33.97 |
+47:36:40.5 |
HIP 6073 |
14.71 |
| 2026-05-23 12:00 |
01:16:40.91 |
+47:37:53.8 |
HIP 6073 |
13.27 |
| 2026-05-24 00:00 |
01:16:47.81 |
+47:39:07.2 |
HIP 6073 |
11.90 |
| 2026-05-24 12:00 |
01:16:54.66 |
+47:40:20.8 |
HIP 6073 |
10.63 |
| 2026-05-25 00:00 |
01:17:01.47 |
+47:41:34.7 |
HIP 6073 |
9.50 |
| 2026-05-25 12:00 |
01:17:08.23 |
+47:42:48.7 |
HIP 6073 |
8.56 |
| 2026-05-26 00:00 |
01:17:14.95 |
+47:44:02.9 |
HIP 6073 |
7.88 |
| 2026-05-26 12:00 |
01:17:21.63 |
+47:45:17.3 |
HIP 6073 |
7.52 |
| 2026-05-27 00:00 |
01:17:28.26 |
+47:46:31.9 |
HIP 6073 |
7.54 |
| 2026-05-27 12:00 |
01:17:34.84 |
+47:47:46.7 |
HIP 6073 |
7.93 |
| 2026-05-28 00:00 |
01:17:41.38 |
+47:49:01.6 |
HIP 6073 |
8.63 |
| 2026-05-28 12:00 |
01:17:47.88 |
+47:50:16.7 |
HIP 6073 |
9.58 |
| 2026-05-29 00:00 |
01:17:54.32 |
+47:51:32.0 |
HIP 6073 |
10.70 |
| 2026-05-29 12:00 |
01:18:00.72 |
+47:52:47.4 |
HIP 6073 |
11.96 |
| 2026-05-30 00:00 |
01:18:07.08 |
+47:54:03.0 |
HIP 6073 |
13.30 |
| 2026-05-30 12:00 |
01:18:13.38 |
+47:55:18.8 |
HIP 6073 |
14.70 |
| 2026-05-31 00:00 |
01:18:19.64 |
+47:56:34.7 |
HIP 6073 |
16.16 |
| 2026-05-31 12:00 |
01:18:25.85 |
+47:57:50.8 |
HIP 6073 |
17.64 |
| 2026-06-01 00:00 |
01:18:32.01 |
+47:59:07.0 |
HIP 6073 |
19.16 |
| 2026-06-01 12:00 |
01:18:38.12 |
+48:00:23.4 |
HIP 6073 |
20.69 |
| 2026-06-02 00:00 |
01:18:44.18 |
+48:01:39.9 |
HIP 6073 |
22.23 |