ASTROSAT CZTI

Data Quality Report

Orbit 07160

Creation date: 2024-06-27T15:16:19.975081
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/AS1G06_029T02_9000000974_07160cztM0_level2.evt modeM0/AS1G06_029T02_9000000974_07160cztM0_level2_quad_clean.evt
Size (bytes)290,600,64051,327,360
Size277.1 MB 48.9 MB
Events in quadrant A1,836,421322,122
Events in quadrant B1,938,618329,562
Events in quadrant C2,205,260313,573
Events in quadrant D2,546,837305,932

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0840
B0840
C0840
D0840

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A082501
B086501
C093581
D0103691

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A4001240.599850%
B4001521.299675%
C40011563.899025%
D40011132.824294%

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 4951 4001 0 0 0.00% 0.00%
B 4951 4001 3 3 0.06% 0.07%
C 4951 4001 116 116 2.34% 2.90%
D 4951 4001 68 68 1.37% 1.70%

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 8 15 39917 409.19 461 451 96.4
A 13 248 8838 86.96 461 451 96.4
A 14 238 6608 63.84 461 451 96.4
B 0 214 51468 557.76 467 454 91.5
B 4 81 37979 410.28 467 454 91.5
B 4 80 25327 271.95 467 454 91.5
C 4 254 469104 4470.1 442 445 104.8
C 9 68 9076 82.32 442 445 104.8
C 13 61 3473 28.88 442 445 104.8
D 2 216 517333 4716.44 443 429 109.6
D 8 195 157526 1433.42 443 429 109.6
D 2 14 126483 1150.17 443 429 109.6

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