ASTROSAT CZTI

Data Quality Report

Orbit 23562

Creation date: 2024-06-27T18:56:09.028413
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/AS1A07_011T01_9000003482_23562cztM0_level2.evt modeM0/AS1A07_011T01_9000003482_23562cztM0_level2_quad_clean.evt
Size (bytes)422,631,36095,880,960
Size403.1 MB 91.4 MB
Events in quadrant A2,809,960627,371
Events in quadrant B3,068,140646,712
Events in quadrant C2,935,290619,327
Events in quadrant D3,580,500593,953

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0224
B0211
C0214
D0224

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01348
B01337
C013511
D01337

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136301260
B0144891394
C0139391302
D0163101542

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5957210.352526%
B5943901.514387%
C5963921.542848%
D59471692.841769%

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 8735 6094 0 0 0.00% 0.00%
B 8735 6067 29 29 0.33% 0.48%
C 8736 6094 1 1 0.01% 0.02%
D 8736 6075 114 114 1.30% 1.88%

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 13 254 9824 62.36 728 713 146.1
A 3 137 6378 38.77 728 713 146.1
A 0 226 6249 37.89 728 713 146.1
B 0 189 78654 558.14 729 711 139.6
B 10 247 69807 494.79 729 711 139.6
B 12 111 16614 113.88 729 711 139.6
C 14 238 112818 683.6 707 712 164.0
C 10 9 25955 153.93 707 712 164.0
C 0 10 25604 151.79 707 712 164.0
D 1 52 642248 3788.88 702 681 169.3
D 12 233 113686 667.37 702 681 169.3
D 9 85 70150 410.26 702 681 169.3

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