ASTROSAT CZTI

Data Quality Report

Orbit 44573

Creation date: 2024-06-27T23:04:06.055628
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/AS1A13_003T01_9000006002_44573cztM0_level2.fits modeM0/AS1A13_003T01_9000006002_44573cztM0_level2_quad_clean.evt
Size (bytes)473,904,000112,072,320
Size452.0 MB 106.9 MB
Events in quadrant A5,089,961746,004
Events in quadrant B3,352,853772,305
Events in quadrant C4,527,076733,963
Events in quadrant D4,052,149674,028

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0220
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0208562
B0145662
C0179552
D0168442

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A67041522.267303%
B67041061.581146%
C67042143.192124%
D67041962.923628%

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 8894 6706 64 64 0.72% 0.95%
B 8894 6706 65 65 0.73% 0.97%
C 8894 6706 177 177 1.99% 2.64%
D 8894 6706 167 167 1.88% 2.49%

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 1924691 12241.76 758 740 157.2
A 13 248 219877 1394.33 758 740 157.2
A 8 205 11473 68.29 758 740 157.2
B 5 172 267485 1797.76 760 738 148.4
B 5 235 61359 408.56 760 738 148.4
B 12 111 18923 122.56 760 738 148.4
C 15 208 1075540 6156.23 743 749 174.6
C 14 254 426494 2438.6 743 749 174.6
C 3 233 74099 420.14 743 749 174.6
D 1 52 540877 2888.12 740 718 187.0
D 2 249 287278 1532.18 740 718 187.0
D 13 174 148762 791.56 740 718 187.0

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