Observation information
- date-obs: 2019-05-28
- time-obs: 01:14:25.346800000
- date-end: 2019-05-28
- time-end: 02:18:17.288500000
- obs_id: C04_009T06_9000002960
- exposure: 2585.99272801
- sourceid: NGC 188
- observer: annapurni
- ra_pnt: 12.08
- dec_pnt: 85.22392
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1C04_009T06_9000002960_19803cztM0_level2.evt
| modeM0/AS1C04_009T06_9000002960_19803cztM0_level2_quad_clean.evt
|
| Size (bytes) | 302,901,120 | 51,575,040 |
| Size | 288.9 MB
| 49.2 MB
|
| Events in quadrant A | 2,468,233 | 353,133 |
| Events in quadrant B | 1,537,255 | 373,408 |
| Events in quadrant C | 1,355,222 | 362,837 |
| Events in quadrant D | 3,624,682 | 275,116 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 58 | 0 |
| B | 0 | 58 | 0 |
| C | 0 | 58 | 0 |
| D | 0 | 58 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9230 | 1 |
| B | 0 | 6483 | 1 |
| C | 0 | 5784 | 1 |
| D | 0 | 12768 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2743 | 291 | 10.608822% |
| B | 2743 | 88 | 3.208166% |
| C | 2743 | 59 | 2.150930% |
| D | 2743 | 1074 | 39.154211% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 3833 | 2744 | 194 | 194 | 5.06% | 7.07% |  |
| B | 3833 | 2744 | 27 | 27 | 0.70% | 0.98% |  |
| C | 3833 | 2744 | 0 | 0 | 0.00% | 0.00% |  |
| D | 3833 | 2743 | 928 | 928 | 24.21% | 33.83% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 6 | 16 | 1196373 | 17705.24 | 329 | 321 | 67.6 |
| A | 0 | 226 | 2794 | 36.61 | 329 | 321 | 67.6 |
| A | 3 | 137 | 2494 | 32.17 | 329 | 321 | 67.6 |
| B | 7 | 220 | 175656 | 2692.3 | 338 | 329 | 65.1 |
| B | 0 | 190 | 26448 | 401.08 | 338 | 329 | 65.1 |
| B | 4 | 216 | 8907 | 131.72 | 338 | 329 | 65.1 |
| C | 14 | 238 | 52510 | 668.68 | 330 | 330 | 78.0 |
| C | 3 | 233 | 13915 | 174.09 | 330 | 330 | 78.0 |
| C | 13 | 61 | 2285 | 25.05 | 330 | 330 | 78.0 |
| D | 7 | 238 | 1963660 | 30807.97 | 261 | 253 | 63.7 |
| D | 12 | 218 | 408602 | 6407.44 | 261 | 253 | 63.7 |
| D | 9 | 1 | 106212 | 1662.61 | 261 | 253 | 63.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |