ASTROSAT CZTI

Data Quality Report

Orbit 44976

Creation date: 2024-06-27T23:08:38.638769
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_044T01_9000006034_44976cztM0_level2.fits modeM0/AS1A13_044T01_9000006034_44976cztM0_level2_quad_clean.evt
Size (bytes)555,583,680112,602,240
Size529.8 MB 107.4 MB
Events in quadrant A5,680,390755,132
Events in quadrant B4,119,384760,315
Events in quadrant C3,377,110754,138
Events in quadrant D6,831,038638,188

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0225572
B0170522
C0151162
D0253412

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01500
B01500
C01500
D01500

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A71941692.349180%
B71953414.739402%
C7195710.986796%
D71957119.881862%

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 8709 7196 10 10 0.11% 0.14%
B 8710 7196 257 257 2.95% 3.57%
C 8710 7197 10 10 0.11% 0.14%
D 8710 7197 611 611 7.01% 8.49%

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 2435027 14357.54 812 793 169.5
A 13 248 50508 293.23 812 793 169.5
A 7 3 46572 270.01 812 793 169.5
B 15 35 655235 4239.74 784 761 154.4
B 4 171 110512 710.98 784 761 154.4
B 5 172 87946 564.79 784 761 154.4
C 1 3 164422 869.6 803 808 188.1
C 11 16 55730 291.91 803 808 188.1
C 14 254 16415 82.95 803 808 188.1
D 13 187 1150392 5905.54 775 752 194.7
D 13 249 850955 4367.38 775 752 194.7
D 11 241 706284 3624.22 775 752 194.7

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