Observation information
- date-obs: 2018-04-30
- time-obs: 10:38:14.893800000
- date-end: 2018-04-30
- time-end: 11:16:26.892400000
- obs_id: A04_075T05_9000002066
- exposure: 1550.3596397
- sourceid: NGC 2420
- observer: rsagar52
- ra_pnt: 114.5954
- dec_pnt: 21.5733
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A04_075T05_9000002066_13991cztM0_level2.evt
| modeM0/AS1A04_075T05_9000002066_13991cztM0_level2_quad_clean.evt
|
| Size (bytes) | 122,114,880 | 31,406,400 |
| Size | 116.5 MB
| 30.0 MB
|
| Events in quadrant A | 845,719 | 211,299 |
| Events in quadrant B | 902,532 | 214,032 |
| Events in quadrant C | 831,039 | 208,980 |
| Events in quadrant D | 1,010,501 | 201,304 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30 | 0 |
| B | 0 | 30 | 0 |
| C | 0 | 30 | 0 |
| D | 0 | 30 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3434 | 2 |
| B | 0 | 3629 | 1 |
| C | 0 | 3358 | 1 |
| D | 0 | 4044 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1560 | 7 | 0.448718% |
| B | 1560 | 12 | 0.769231% |
| C | 1560 | 2 | 0.128205% |
| D | 1560 | 18 | 1.153846% |
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 | 1561 | 1561 | 0 | 0 | 0.00% | 0.00% |  |
| B | 1561 | 1561 | 4 | 4 | 0.26% | 0.26% |  |
| C | 1561 | 1561 | 0 | 0 | 0.00% | 0.00% |  |
| D | 1561 | 1561 | 8 | 8 | 0.51% | 0.51% |  |
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 | 8 | 15 | 21396 | 474.98 | 210 | 206 | 44.6 |
| A | 12 | 189 | 5893 | 127.47 | 210 | 206 | 44.6 |
| A | 1 | 162 | 4181 | 89.1 | 210 | 206 | 44.6 |
| B | 0 | 189 | 36027 | 849.35 | 206 | 202 | 42.2 |
| B | 4 | 80 | 14298 | 334.19 | 206 | 202 | 42.2 |
| B | 4 | 142 | 13427 | 313.54 | 206 | 202 | 42.2 |
| C | 3 | 233 | 49395 | 1030.31 | 200 | 200 | 47.7 |
| C | 13 | 61 | 1441 | 25.99 | 200 | 200 | 47.7 |
| C | 3 | 202 | 459 | 5.42 | 200 | 200 | 47.7 |
| D | 13 | 189 | 96065 | 1922.13 | 202 | 197 | 49.9 |
| D | 8 | 195 | 93095 | 1862.59 | 202 | 197 | 49.9 |
| D | 7 | 80 | 20696 | 411.0 | 202 | 197 | 49.9 |
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 |  |