ASTROSAT CZTI

Data Quality Report

Orbit 29138

Creation date: 2024-06-27T20:00:42.015089
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_099T01_9000004184_29138cztM0_level2.evt modeM0/AS1A10_099T01_9000004184_29138cztM0_level2_quad_clean.evt
Size (bytes)531,506,88090,610,560
Size506.9 MB 86.4 MB
Events in quadrant A3,455,516595,745
Events in quadrant B3,573,167605,684
Events in quadrant C3,475,704569,500
Events in quadrant D5,177,222545,151

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0260
B0260
C0260
D0260

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0143062
B0145812
C0142822
D0197103

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61241151.877858%
B61251342.187755%
C61251702.775510%
D61242954.817113%

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 8804 6126 0 0 0.00% 0.00%
B 8805 6127 5 5 0.06% 0.08%
C 8805 6127 0 0 0.00% 0.00%
D 8804 6126 138 138 1.57% 2.25%

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 10835 56.17 895 881 177.2
A 3 137 8143 40.98 895 881 177.2
A 0 226 7606 37.95 895 881 177.2
B 0 190 48370 287.68 887 869 165.1
B 12 111 19547 113.12 887 869 165.1
B 11 111 17621 101.46 887 869 165.1
C 14 238 138142 705.18 844 856 194.7
C 3 233 26218 130.27 844 856 194.7
C 2 114 14654 70.87 844 856 194.7
D 1 52 1187579 6145.15 834 815 193.1
D 8 195 700021 3620.54 834 815 193.1
D 12 233 69296 354.6 834 815 193.1

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