ASTROSAT CZTI

Data Quality Report

Orbit 47034

Creation date: 2024-06-27T23:30:59.871890
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/AS1C09_005T01_9000006296_47034cztM0_level2.fits modeM0/AS1C09_005T01_9000006296_47034cztM0_level2_quad_clean.evt
Size (bytes)1,006,574,400231,589,440
Size959.9 MB 220.9 MB
Events in quadrant A13,803,8941,522,155
Events in quadrant B8,924,3701,539,246
Events in quadrant C6,390,0121,523,824
Events in quadrant D6,997,2351,405,094

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03000
B03000
C03000
D03000

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0503142
B0368122
C0303842
D0321702

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A147944002.703799%
B147946214.197648%
C14794460.310937%
D147941360.919292%

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 15644 14796 7 7 0.04% 0.05%
B 15644 14796 269 269 1.72% 1.82%
C 15644 14796 12 12 0.08% 0.08%
D 15644 14796 75 75 0.48% 0.51%

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 10 83 7516860 22769.65 1600 1566 330.1
A 9 191 58383 172.14 1600 1566 330.1
A 13 254 27502 78.58 1600 1566 330.1
B 4 171 949892 3085.69 1577 1525 307.3
B 3 112 736040 2389.88 1577 1525 307.3
B 5 172 379150 1228.67 1577 1525 307.3
C 14 254 164495 441.28 1577 1584 369.2
C 14 67 25218 64.02 1577 1584 369.2
C 0 207 23852 60.32 1577 1584 369.2
D 1 52 256630 651.68 1575 1523 391.5
D 13 249 140575 355.21 1575 1523 391.5
D 12 233 80948 202.89 1575 1523 391.5

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