ASTROSAT CZTI

Data Quality Report

Orbit 12084

Creation date: 2024-06-27T16:22:12.257146
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/AS1A04_130T04_9000001794_12084cztM0_level2.evt modeM0/AS1A04_130T04_9000001794_12084cztM0_level2_quad_clean.evt
Size (bytes)638,559,36061,427,520
Size609.0 MB 58.6 MB
Events in quadrant A6,095,258324,321
Events in quadrant B5,179,696363,064
Events in quadrant C3,199,715374,190
Events in quadrant D4,436,045355,988

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224322
B0196491
C0134651
D0175941

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6323116618.440614%
B63236009.489167%
C6323741.170331%
D63232523.985450%

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 7554 6324 856 856 11.33% 13.54%
B 7554 6324 321 321 4.25% 5.08%
C 7554 6324 0 0 0.00% 0.00%
D 7554 6324 137 137 1.81% 2.17%

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 13 248 1935659 12430.55 776 762 155.7
A 14 63 717557 4604.98 776 762 155.7
A 13 251 149068 952.78 776 762 155.7
B 4 239 1671507 10973.31 815 797 152.3
B 15 204 193534 1265.91 815 797 152.3
B 11 51 102927 670.79 815 797 152.3
C 13 61 6009 27.51 819 822 188.5
C 0 207 3412 13.74 819 822 188.5
C 3 202 2166 7.13 819 822 188.5
D 1 52 690762 3548.38 809 787 194.4
D 8 195 432311 2219.23 809 787 194.4
D 13 104 84670 431.39 809 787 194.4

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