ASTROSAT CZTI

Data Quality Report

Orbit 58361

Creation date: 2026-07-12T01:50:59.579039
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_044T03_9000006588_58361cztM0_level2.fits modeM0/AS1A14_044T03_9000006588_58361cztM0_level2_quad_clean.evt
Size (bytes)2,045,116,800217,964,160
Size1.9 GB 207.9 MB
Events in quadrant A9,954,4991,664,706
Events in quadrant B22,852,4231,443,902
Events in quadrant C31,643,061709,484
Events in quadrant D9,837,5561,517,150

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03720
B03720
C03720
D03720

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0429703
B0806433
C01065413
D0418413

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A183286183.371890%
B18328420222.926670%
C183281069358.342427%
D183283321.811436%

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 19588 18332 411 411 2.10% 2.24%
B 19588 18331 3142 3142 16.04% 17.14%
C 19588 18329 9950 9950 50.80% 54.29%
D 19588 18332 236 236 1.20% 1.29%

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 12 80 810768 1672.76 1959 1910 483.5
A 8 246 565894 1166.34 1959 1910 483.5
A 8 249 149015 304.22 1959 1910 483.5
B 10 128 7870992 20244.9 1812 1742 388.7
B 0 213 3943757 10141.46 1812 1742 388.7
B 6 255 2100845 5400.28 1812 1742 388.7
C 15 148 25378256 77582.31 1185 1172 327.1
C 4 5 968841 2958.34 1185 1172 327.1
C 6 223 268936 818.6 1185 1172 327.1
D 11 129 746818 1367.64 1925 1837 544.7
D 2 249 547442 1001.62 1925 1837 544.7
D 3 12 258225 470.68 1925 1837 544.7

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