ASTROSAT CZTI

Data Quality Report

Orbit 04434

Creation date: 2024-06-27T14:41:58.299765
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/AS1G05_214T01_9000000552_04434cztM0_level2.evt modeM0/AS1G05_214T01_9000000552_04434cztM0_level2_quad_clean.evt
Size (bytes)504,313,92085,299,840
Size481.0 MB 81.3 MB
Events in quadrant A3,771,061513,257
Events in quadrant B3,626,864527,130
Events in quadrant C3,488,642525,254
Events in quadrant D3,874,303493,028

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01520
B01520
C01520
D01520

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0164722
B0158081
C0156671
D0168921

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A010
B010
C010
D010

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A75372433.224094%
B75372252.985273%
C75371762.335147%
D75372943.900756%

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 7642 7539 14 14 0.18% 0.19%
B 7642 7539 2 2 0.03% 0.03%
C 7642 7539 0 0 0.00% 0.00%
D 7642 7539 105 105 1.37% 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 0 13 294838 1580.65 903 883 186.0
A 12 194 9059 43.96 903 883 186.0
A 0 226 8828 42.72 903 883 186.0
B 14 167 50460 279.44 917 895 177.4
B 4 48 23439 127.1 917 895 177.4
B 12 111 17308 92.54 917 895 177.4
C 9 247 8434 35.74 890 892 211.0
C 13 61 7296 30.35 890 892 211.0
C 12 4 3275 11.29 890 892 211.0
D 14 34 270914 1259.69 879 855 214.4
D 13 239 118550 548.99 879 855 214.4
D 8 230 36686 167.13 879 855 214.4

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