ASTROSAT CZTI

Data Quality Report

Orbit 42708

Creation date: 2024-06-27T22:43:18.163434
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/AS1A05_013T01_9000005822_42708cztM0_level2.fits modeM0/AS1A05_013T01_9000005822_42708cztM0_level2_quad_clean.evt
Size (bytes)288,757,44088,784,640
Size275.4 MB 84.7 MB
Events in quadrant A2,922,019598,542
Events in quadrant B2,362,644616,342
Events in quadrant C2,545,224582,230
Events in quadrant D2,462,460534,498

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0114982
B0103692
C0104652
D0108012

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0210
B0220
C0220
D0220

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01060
B01060
C01060
D01060

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5085190.373648%
B5085140.275320%
C508470.137687%
D5084170.334382%

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 7178 5086 17 17 0.24% 0.33%
B 7178 5086 6 6 0.08% 0.12%
C 7177 5085 3 3 0.04% 0.06%
D 7177 5085 15 15 0.21% 0.29%

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 567209 4712.92 582 571 120.2
A 0 230 85821 709.05 582 571 120.2
A 13 6 11303 89.26 582 571 120.2
B 5 255 50471 450.35 576 560 110.8
B 0 230 16105 140.26 576 560 110.8
B 12 111 13675 118.34 576 560 110.8
C 15 214 217875 1654.37 568 572 131.4
C 3 233 72785 549.77 568 572 131.4
C 4 254 24407 181.46 568 572 131.4
D 2 249 93451 682.61 567 551 136.1
D 5 171 63517 462.66 567 551 136.1
D 12 6 45120 327.48 567 551 136.1

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