ASTROSAT CZTI

Data Quality Report

Orbit 59390

Creation date: 2026-09-19T06:11:03.183225
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_033T01_9000006608_59390cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59390cztM0_level2_quad_clean.evt
Size (bytes)520,076,160125,343,360
Size496.0 MB 119.5 MB
Events in quadrant A3,849,614814,440
Events in quadrant B5,554,433871,343
Events in quadrant C4,261,178793,818
Events in quadrant D4,930,510729,006

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01700
B01700
C01700
D01700

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180200
B0225180
C0189040
D0208840

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A8442180.213220%
B84433213.801966%
C8443851.006751%
D84432122.510956%

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 8441 8441 8 8 0.09% 0.09%
B 8442 8442 153 153 1.81% 1.81%
C 8442 8442 68 68 0.81% 0.81%
D 8442 8442 191 191 2.26% 2.26%

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 14 238 102325 433.91 947 921 233.7
A 10 251 73395 310.12 947 921 233.7
A 3 137 12192 48.23 947 921 233.7
B 10 128 802028 3980.66 938 901 201.3
B 5 185 670065 3324.96 938 901 201.3
B 4 236 214982 1063.73 938 901 201.3
C 2 12 346694 1338.71 939 933 258.3
C 14 254 69065 263.79 939 933 258.3
C 6 223 58257 221.95 939 933 258.3
D 12 2 607243 2325.8 919 880 260.7
D 12 110 405623 1552.46 919 880 260.7
D 6 239 135272 515.48 919 880 260.7

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