Observation information
- date-obs: 2019-01-04
- time-obs: 01:56:29.423500000
- date-end: 2019-01-04
- time-end: 04:22:23.419700000
- obs_id: A05_208T01_9000002614
- exposure: 4536.19063236
- sourceid: NGC 4939
- observer: KshamaSK
- ra_pnt: 196.0599
- dec_pnt: -10.3396
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_208T01_9000002614_17673cztM0_level2.evt
| modeM0/AS1A05_208T01_9000002614_17673cztM0_level2_quad_clean.evt
|
| Size (bytes) | 503,743,680 | 102,850,560 |
| Size | 480.4 MB
| 98.1 MB
|
| Events in quadrant A | 3,242,765 | 674,730 |
| Events in quadrant B | 3,439,048 | 696,966 |
| Events in quadrant C | 4,556,590 | 652,131 |
| Events in quadrant D | 3,577,618 | 638,693 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13604 | 2 |
| B | 0 | 14196 | 2 |
| C | 0 | 18748 | 2 |
| D | 0 | 14971 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6484 | 45 | 0.694016% |
| B | 6484 | 100 | 1.542258% |
| C | 6483 | 164 | 2.529693% |
| D | 6483 | 155 | 2.390868% |
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 | 7809 | 6486 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7809 | 6486 | 14 | 14 | 0.18% | 0.22% |  |
| C | 7808 | 6485 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7808 | 6485 | 74 | 74 | 0.95% | 1.14% |  |
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 | 0 | 226 | 7217 | 38.03 | 841 | 827 | 168.0 |
| A | 12 | 194 | 5993 | 30.75 | 841 | 827 | 168.0 |
| A | 3 | 137 | 5790 | 29.54 | 841 | 827 | 168.0 |
| B | 10 | 245 | 96475 | 601.04 | 845 | 826 | 159.1 |
| B | 0 | 230 | 33598 | 205.93 | 845 | 826 | 159.1 |
| B | 12 | 111 | 18346 | 110.09 | 845 | 826 | 159.1 |
| C | 3 | 233 | 1238111 | 6566.76 | 809 | 815 | 188.4 |
| C | 14 | 238 | 126957 | 669.48 | 809 | 815 | 188.4 |
| C | 5 | 218 | 33621 | 174.11 | 809 | 815 | 188.4 |
| D | 5 | 222 | 395994 | 1999.72 | 808 | 785 | 197.6 |
| D | 7 | 238 | 47144 | 234.57 | 808 | 785 | 197.6 |
| D | 10 | 70 | 31706 | 156.46 | 808 | 785 | 197.6 |
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 |  |