ASTROSAT CZTI

Data Quality Report

Orbit 10463

Creation date: 2024-06-27T15:59:32.185741
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1A03_126T01_9000001512_10463cztM0_level2.evt modeM0/AS1A03_126T01_9000001512_10463cztM0_level2_quad_clean.evt
Size (bytes)389,937,60080,691,840
Size371.9 MB 77.0 MB
Events in quadrant A3,251,740397,104
Events in quadrant B2,672,912563,649
Events in quadrant C2,518,284563,551
Events in quadrant D3,022,087565,096

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224110
B0224106
C0224106
D0216104

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03042518123
B02415812957
C02250111662
D02580713544

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0319
B03412
C03412
D0318

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A41231974.778074%
B5145601.166181%
C5275100.189573%
D5549100.180213%

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 7407 4877 161 161 2.17% 3.30%
B 7408 5864 16 16 0.22% 0.27%
C 7408 5969 0 0 0.00% 0.00%
D 7408 5832 2 2 0.03% 0.03%

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 13 251 1210428 11632.33 510 500 104.0
A 3 80 48225 458.83 510 500 104.0
A 1 162 15453 143.76 510 500 104.0
B 4 239 133762 1094.09 637 623 121.7
B 0 214 31570 254.31 637 623 121.7
B 12 111 12908 100.95 637 623 121.7
C 14 67 5026 29.31 644 649 149.3
C 13 61 4791 27.74 644 649 149.3
C 8 222 1858 8.1 644 649 149.3
D 8 195 311916 1998.44 657 639 155.8
D 1 20 65269 414.93 657 639 155.8
D 1 52 61481 390.61 657 639 155.8

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