ASTROSAT CZTI

Data Quality Report

Orbit 05817

Creation date: 2024-06-27T14:59:45.908983
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_168T07_9000000750_05817cztM0_level2.evt modeM0/AS1G06_168T07_9000000750_05817cztM0_level2_quad_clean.evt
Size (bytes)483,906,24087,865,920
Size461.5 MB 83.8 MB
Events in quadrant A3,796,457554,984
Events in quadrant B2,973,751576,585
Events in quadrant C2,936,080566,177
Events in quadrant D4,522,728524,764

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01280
B01280
C01280
D01280

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0158152
B0128521
C0127971
D0176261

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6278370.589360%
B6278300.477859%
C6278340.541574%
D62781502.389296%

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 7518 6279 5 5 0.07% 0.08%
B 7518 6279 0 0 0.00% 0.00%
C 7518 6279 0 0 0.00% 0.00%
D 7518 6279 151 151 2.01% 2.40%

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 15 236 690066 4544.85 748 732 151.7
A 15 79 207047 1360.26 748 732 151.7
A 15 223 16083 101.21 748 732 151.7
B 12 111 13349 88.26 765 747 142.8
B 11 111 10410 67.68 765 747 142.8
B 15 204 7952 50.46 765 747 142.8
C 14 67 6959 35.96 749 751 172.6
C 13 61 6058 30.74 749 751 172.6
C 1 16 2833 12.06 749 751 172.6
D 8 230 1624866 9187.02 732 710 176.8
D 11 241 61651 344.71 732 710 176.8
D 12 233 34673 192.11 732 710 176.8

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