ASTROSAT CZTI

Data Quality Report

Orbit 32130

Creation date: 2024-06-27T20:36:49.549134
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/AS1T04_051T01_9000004686_32130cztM0_level2.evt modeM0/AS1T04_051T01_9000004686_32130cztM0_level2_quad_clean.evt
Size (bytes)631,114,56087,183,360
Size601.9 MB 83.1 MB
Events in quadrant A2,993,971582,447
Events in quadrant B6,012,328561,746
Events in quadrant C3,235,316561,362
Events in quadrant D6,448,641497,198

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0128311
B0222121
C0134711
D0235651

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A625570.111910%
B62563555.674552%
C62561071.710358%
D625695715.297315%

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 7315 6256 0 0 0.00% 0.00%
B 7316 6257 199 199 2.72% 3.18%
C 7316 6257 47 47 0.64% 0.75%
D 7316 6257 902 902 12.33% 14.42%

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 6 17879 110.7 767 752 154.7
A 13 254 14431 88.42 767 752 154.7
A 3 137 7705 44.94 767 752 154.7
B 6 159 1805677 12721.68 745 725 141.9
B 10 245 628747 4426.43 745 725 141.9
B 5 172 470620 3311.92 745 725 141.9
C 0 10 219690 1293.48 724 729 169.3
C 14 238 123936 727.83 724 729 169.3
C 4 175 14905 83.74 724 729 169.3
D 12 233 2398727 14669.43 679 662 163.5
D 8 195 1145915 7005.74 679 662 163.5
D 7 38 129321 787.03 679 662 163.5

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