ASTROSAT CZTI

Data Quality Report

Orbit 11073

Creation date: 2024-06-27T16:07:54.723935
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/AS1G08_075T01_9000001616_11073cztM0_level2.evt modeM0/AS1G08_075T01_9000001616_11073cztM0_level2_quad_clean.evt
Size (bytes)501,318,72071,772,480
Size478.1 MB 68.4 MB
Events in quadrant A3,382,652443,816
Events in quadrant B4,350,438441,752
Events in quadrant C3,065,541439,140
Events in quadrant D3,957,967410,229

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0138383
B0168672
C0130702
D0157512

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A62761021.625239%
B62763525.608668%
C6276540.860421%
D62771582.517126%

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 7561 6277 0 0 0.00% 0.00%
B 7561 6276 164 164 2.17% 2.61%
C 7561 6277 0 0 0.00% 0.00%
D 7562 6278 87 87 1.15% 1.39%

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 8 15 218199 1317.83 818 803 165.0
A 0 226 7428 40.16 818 803 165.0
A 12 194 6440 34.17 818 803 165.0
B 4 239 1087337 7125.52 808 789 152.5
B 0 214 41821 269.09 808 789 152.5
B 15 204 27805 177.17 808 789 152.5
C 13 61 5833 27.87 786 791 180.9
C 14 67 2275 8.2 786 791 180.9
C 3 202 1978 6.56 786 791 180.9
D 11 129 431480 2315.05 775 755 186.1
D 10 253 363418 1949.23 775 755 186.1
D 13 104 73557 391.29 775 755 186.1

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