Observation information
- date-obs: 2017-10-22
- time-obs: 08:15:27.570900000
- date-end: 2017-10-24
- time-end: 10:44:12.652600000
- obs_id: A04_171T01_9000001634
- exposure: 97001.4860952
- sourceid: NGC 424
- observer: sachi
- ra_pnt: 17.86511
- dec_pnt: -38.08347
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1A04_171T01_9000001634cztM0_level2.evt
| modeM0/AS1A04_171T01_9000001634cztM0_level2_quad_clean.evt
|
Size (bytes) | 13,340,473,920 | 1,910,980,800 |
Size | 12.4 GB
| 1.8 GB
|
Events in quadrant A | 116,558,091 | 11,578,722 |
Events in quadrant B | 96,378,358 | 12,073,447 |
Events in quadrant C | 72,109,573 | 12,085,855 |
Events in quadrant D | 108,282,405 | 11,256,474 |
Level1 data integrity
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 221 | 0 |
B | 0 | 221 | 0 |
C | 0 | 221 | 0 |
D | 0 | 221 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 452181 | 0 |
B | 0 | 390814 | 0 |
C | 0 | 327148 | 0 |
D | 0 | 428964 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3230 | 0 |
B | 0 | 3228 | 0 |
C | 0 | 3232 | 0 |
D | 0 | 3234 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 158746 | 12642 | 7.963665% |
B | 158862 | 8161 | 5.137163% |
C | 158918 | 2286 | 1.438478% |
D | 158804 | 8709 | 5.484119% |
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 | 181727 | 159006 | 7401 | 7401 | 4.07% | 4.65% |  |
B | 181727 | 159140 | 3154 | 3154 | 1.74% | 1.98% |  |
C | 181727 | 159137 | 18 | 18 | 0.01% | 0.01% |  |
D | 181727 | 159068 | 5441 | 5441 | 2.99% | 3.42% |  |
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 | 15 | 239 | 20771699 | 5652.04 | 18196 | 17808 | 3671.9 |
A | 8 | 5 | 15518844 | 4221.5 | 18196 | 17808 | 3671.9 |
A | 8 | 15 | 7856088 | 2134.65 | 18196 | 17808 | 3671.9 |
B | 4 | 239 | 18928721 | 5334.94 | 18703 | 18220 | 3544.7 |
B | 15 | 204 | 1131724 | 314.14 | 18703 | 18220 | 3544.7 |
B | 4 | 80 | 698793 | 192.0 | 18703 | 18220 | 3544.7 |
C | 13 | 61 | 135274 | 27.35 | 18429 | 18507 | 4269.5 |
C | 1 | 3 | 117327 | 23.15 | 18429 | 18507 | 4269.5 |
C | 12 | 4 | 68580 | 11.73 | 18429 | 18507 | 4269.5 |
D | 1 | 52 | 8529753 | 1973.7 | 17912 | 17414 | 4312.9 |
D | 2 | 14 | 5403272 | 1248.79 | 17912 | 17414 | 4312.9 |
D | 10 | 157 | 5042436 | 1165.12 | 17912 | 17414 | 4312.9 |
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 |  |