ASTROSAT CZTI

Data Quality Report

Orbit 34034

Creation date: 2024-06-27T20:55:40.698175
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/AS1A06_003T04_9000004866_34034cztM0_level2.evt modeM0/AS1A06_003T04_9000004866_34034cztM0_level2_quad_clean.evt
Size (bytes)547,997,76089,493,120
Size522.6 MB 85.3 MB
Events in quadrant A3,827,816592,853
Events in quadrant B3,832,527603,372
Events in quadrant C4,193,389588,058
Events in quadrant D4,393,870564,395

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0300
B0300
C0300
D0310

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145343
B0146822
C0158362
D0164492

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A51493707.185861%
B51493406.603224%
C51492284.428044%
D51492685.204894%

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 7063 5150 340 340 4.81% 6.60%
B 7063 5150 269 269 3.81% 5.22%
C 7063 5150 198 198 2.80% 3.84%
D 7063 5150 276 276 3.91% 5.36%

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 15 169 1442260 11811.99 609 597 122.1
A 10 83 17563 139.0 609 597 122.1
A 13 6 13852 108.6 609 597 122.1
B 5 172 1081003 9485.84 604 591 113.9
B 15 222 117136 1023.25 604 591 113.9
B 0 189 60262 523.9 604 591 113.9
C 3 233 809962 5930.82 587 592 136.5
C 4 254 559510 4095.58 587 592 136.5
C 15 214 236443 1728.24 587 592 136.5
D 8 195 828993 5690.36 595 580 145.6
D 2 249 489317 3357.13 595 580 145.6
D 13 249 184052 1260.27 595 580 145.6

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