ASTROSAT CZTI

Data Quality Report

Orbit 59383

Creation date: 2026-09-18T18:09:50.321615
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_59383cztM0_level2.fits modeM0/AS1A14_033T01_9000006608_59383cztM0_level2_quad_clean.evt
Size (bytes)440,225,28099,878,400
Size419.8 MB 95.3 MB
Events in quadrant A3,144,382660,251
Events in quadrant B3,680,474702,639
Events in quadrant C3,112,125639,203
Events in quadrant D5,847,223564,304

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01386
B01386
C01384
D01384

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014283348
B015829489
C014305376
D022337510

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A65811161.762650%
B65782714.119793%
C6575991.505703%
D65665798.818154%

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 8893 6641 15 15 0.17% 0.23%
B 8892 6620 120 120 1.35% 1.81%
C 8892 6621 25 25 0.28% 0.38%
D 8892 6610 497 497 5.59% 7.52%

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 10 251 83629 448.34 761 742 184.9
A 3 245 58020 309.82 761 742 184.9
A 14 238 18756 97.44 761 742 184.9
B 5 185 236977 1489.38 741 714 158.6
B 4 171 151383 949.8 741 714 158.6
B 4 201 99534 622.95 741 714 158.6
C 6 223 93061 457.19 737 731 201.9
C 4 5 36025 174.77 737 731 201.9
C 3 242 32620 157.91 737 731 201.9
D 12 110 1593170 8000.1 714 684 199.1
D 12 2 693889 3482.42 714 684 199.1
D 3 12 349159 1750.62 714 684 199.1

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