ASTROSAT CZTI

Data Quality Report

Orbit 16563

Creation date: 2024-06-27T17:24:27.595345
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/AS1T03_018T01_9000002442_16563cztM0_level2.evt modeM0/AS1T03_018T01_9000002442_16563cztM0_level2_quad_clean.evt
Size (bytes)606,945,60081,195,840
Size578.8 MB 77.4 MB
Events in quadrant A3,865,977490,659
Events in quadrant B4,674,055497,842
Events in quadrant C4,297,609494,052
Events in quadrant D5,003,945422,730

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0168244
B0189353
C0174933
D0205213

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01660
B01660
C01660
D01660

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A79402803.526448%
B79404215.302267%
C79403364.231738%
D7940110813.954660%

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 8551 7944 0 0 0.00% 0.00%
B 8551 7943 63 63 0.74% 0.79%
C 8551 7943 0 0 0.00% 0.00%
D 8551 7944 134 134 1.57% 1.69%

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 15 174 16994 79.09 993 971 202.6
A 9 143 13468 61.69 993 971 202.6
A 15 223 10138 45.25 993 971 202.6
B 15 35 364702 1878.92 993 967 193.6
B 0 85 144394 740.89 993 967 193.6
B 0 229 75538 385.21 993 967 193.6
C 3 233 260560 1133.98 958 965 228.9
C 7 247 154558 670.94 958 965 228.9
C 14 238 143739 623.68 958 965 228.9
D 1 52 1209068 5362.09 917 890 225.3
D 10 70 130905 577.03 917 890 225.3
D 7 38 108548 477.8 917 890 225.3

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