ASTROSAT CZTI

Data Quality Report

Orbit 58794

Creation date: 2026-08-10T04:16:04.419800
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/AS1A14_106T01_9000006596_58794cztM0_level2.fits modeM0/AS1A14_106T01_9000006596_58794cztM0_level2_quad_clean.evt
Size (bytes)777,983,04098,066,880
Size741.9 MB 93.5 MB
Events in quadrant A4,068,582728,418
Events in quadrant B3,836,628787,842
Events in quadrant C3,883,500709,123
Events in quadrant D16,408,310205,601

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0175060
B0169460
C0172790
D0539633

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01540
B01540
C01540
D01540

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A77391832.364647%
B7740710.917313%
C7740510.658915%
D7739567873.368652%

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 7739 7739 147 147 1.90% 1.90%
B 7740 7740 44 44 0.57% 0.57%
C 7740 7740 45 45 0.58% 0.58%
D 7738 7738 5320 5320 68.75% 68.75%

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 15 233 448685 2152.48 834 813 208.1
A 13 248 154290 737.61 834 813 208.1
A 10 251 103593 493.96 834 813 208.1
B 4 158 118922 653.07 837 808 180.9
B 4 236 105317 577.84 837 808 180.9
B 4 171 64248 350.77 837 808 180.9
C 6 223 218133 961.98 824 815 225.9
C 15 208 144100 634.26 824 815 225.9
C 13 3 78111 342.16 824 815 225.9
D 12 110 11392670 66781.77 594 567 170.6
D 11 129 2193017 12852.39 594 567 170.6
D 2 249 85189 496.06 594 567 170.6

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

TCT plots

Parameter TCT0 TCT_healed
Tct