ASTROSAT CZTI

Data Quality Report

Orbit 29028

Creation date: 2024-06-27T19:59:23.171755
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/AS1A10_123T02_9000004160_29028cztM0_level2.evt modeM0/AS1A10_123T02_9000004160_29028cztM0_level2_quad_clean.evt
Size (bytes)638,694,72087,154,560
Size609.1 MB 83.1 MB
Events in quadrant A3,484,258540,482
Events in quadrant B3,590,246558,748
Events in quadrant C3,652,540526,857
Events in quadrant D8,103,571486,920

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0154011
B0154751
C0156121
D0292951

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75641041.374934%
B75651201.586252%
C75651441.903503%
D7565111714.765367%

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 7879 7565 0 0 0.00% 0.00%
B 7880 7566 1 1 0.01% 0.01%
C 7880 7566 4 4 0.05% 0.05%
D 7880 7566 1036 1036 13.15% 13.69%

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 12840 64.98 902 881 184.1
A 3 137 9441 46.51 902 881 184.1
A 0 226 7440 35.64 902 881 184.1
B 0 229 33228 185.48 900 876 174.4
B 12 111 22777 125.57 900 876 174.4
B 11 111 20570 112.91 900 876 174.4
C 14 238 138848 675.58 869 872 204.2
C 3 233 63955 308.88 869 872 204.2
C 2 16 43294 207.71 869 872 204.2
D 7 80 4135597 21227.39 816 794 194.8
D 8 195 474239 2430.59 816 794 194.8
D 1 52 402635 2062.99 816 794 194.8

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