ASTROSAT CZTI

Data Quality Report

Orbit 31992

Creation date: 2024-06-27T20:34:55.020719
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/AS1A10_058T12_9000004674_31992cztM0_level2.evt modeM0/AS1A10_058T12_9000004674_31992cztM0_level2_quad_clean.evt
Size (bytes)571,893,12070,937,280
Size545.4 MB 67.7 MB
Events in quadrant A3,518,751434,461
Events in quadrant B5,272,654427,452
Events in quadrant C4,194,961407,308
Events in quadrant D3,880,220411,796

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142352
B0204582
C0167044
D0156342

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6696771.149940%
B66961492.225209%
C66952133.181479%
D6695851.269604%

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 7751 6696 0 0 0.00% 0.00%
B 7751 6696 0 0 0.00% 0.00%
C 7750 6695 14 14 0.18% 0.21%
D 7750 6695 32 32 0.41% 0.48%

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 13 6 15479 80.71 908 890 180.8
A 13 254 12177 62.44 908 890 180.8
A 3 137 8963 44.66 908 890 180.8
B 6 159 1718181 10161.17 882 859 169.0
B 0 190 54908 319.8 882 859 169.0
B 12 111 20966 118.97 882 859 169.0
C 3 233 534651 2696.69 849 856 197.9
C 14 238 148997 748.4 849 856 197.9
C 2 16 55757 277.36 849 856 197.9
D 8 195 254711 1225.14 876 856 207.2
D 12 233 120712 578.44 876 856 207.2
D 2 250 89170 426.21 876 856 207.2

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