ASTROSAT CZTI

Data Quality Report

Orbit 44324

Creation date: 2024-06-27T23:02:07.928808
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_059T01_9000005990_44324cztM0_level2.fits modeM0/AS1A13_059T01_9000005990_44324cztM0_level2_quad_clean.evt
Size (bytes)442,281,600109,019,520
Size421.8 MB 104.0 MB
Events in quadrant A4,659,928721,064
Events in quadrant B3,906,294736,395
Events in quadrant C3,021,994721,427
Events in quadrant D4,251,946645,484

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0195161
B0161011
C0139621
D0174631

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01380
B01380
C01380
D01380

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A080
B080
C080
D080

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A68381301.901141%
B68382423.539047%
C6839570.833455%
D68393094.518204%

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 7668 6838 10 10 0.13% 0.15%
B 7668 6838 95 95 1.24% 1.39%
C 7669 6839 1 1 0.01% 0.01%
D 7669 6839 206 206 2.69% 3.01%

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 1546327 9685.31 768 751 159.6
A 7 3 82507 512.32 768 751 159.6
A 4 0 21253 128.48 768 751 159.6
B 5 255 550516 3597.54 763 738 152.8
B 0 219 150172 977.84 763 738 152.8
B 0 190 76312 494.53 763 738 152.8
C 14 254 43296 237.13 760 763 179.4
C 1 3 10659 55.17 760 763 179.4
C 3 233 7690 38.62 760 763 179.4
D 2 153 619397 3296.29 747 724 187.7
D 13 249 412245 2192.58 747 724 187.7
D 2 249 76392 403.16 747 724 187.7

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