ASTROSAT CZTI

Data Quality Report

Orbit 22508

Creation date: 2024-06-27T18:42:05.291588
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_144T02_9000003340_22508cztM0_level2.evt modeM0/AS1A07_144T02_9000003340_22508cztM0_level2_quad_clean.evt
Size (bytes)466,652,16072,780,480
Size445.0 MB 69.4 MB
Events in quadrant A3,310,635444,941
Events in quadrant B3,683,035453,626
Events in quadrant C3,405,849444,145
Events in quadrant D3,318,017434,176

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0137791
B0149391
C0141231
D0139361

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6114831.357540%
B61151362.224039%
C61151422.322159%
D6115801.308258%

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 7434 6114 0 0 0.00% 0.00%
B 7435 6115 14 14 0.19% 0.23%
C 7435 6115 0 0 0.00% 0.00%
D 7435 6115 5 5 0.07% 0.08%

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 10137 54.53 856 843 170.4
A 13 34 8587 45.44 856 843 170.4
A 0 226 7450 38.77 856 843 170.4
B 15 33 210106 1310.88 851 832 159.6
B 0 228 57767 356.64 851 832 159.6
B 15 35 56962 351.6 851 832 159.6
C 14 238 132920 686.72 835 846 192.3
C 10 22 9371 44.33 835 846 192.3
C 0 10 8286 38.68 835 846 192.3
D 0 11 47099 226.15 847 825 204.6
D 1 52 37957 181.47 847 825 204.6
D 2 234 24833 117.33 847 825 204.6

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