ASTROSAT CZTI

Data Quality Report

Orbit 27952

Creation date: 2024-06-27T19:46:20.174709
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_016T01_9000004034_27952cztM0_level2.evt modeM0/AS1A10_016T01_9000004034_27952cztM0_level2_quad_clean.evt
Size (bytes)590,688,00080,254,080
Size563.3 MB 76.5 MB
Events in quadrant A3,484,713507,118
Events in quadrant B3,664,104513,280
Events in quadrant C3,758,563494,171
Events in quadrant D6,552,736473,567

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140690
B0148090
C0151430
D0243720

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0150
C0150
D0150

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6329921.453626%
B63291071.690630%
C63291642.591247%
D6329105516.669300%

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 7594 6329 0 0 0.00% 0.00%
B 7594 6329 6 6 0.08% 0.09%
C 7594 6329 14 14 0.18% 0.22%
D 7594 6329 951 951 12.52% 15.03%

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 13 254 11052 57.08 900 883 178.2
A 0 226 7865 39.19 900 883 178.2
A 3 137 7708 38.31 900 883 178.2
B 10 245 116847 701.16 884 865 165.4
B 0 230 46118 273.57 884 865 165.4
B 0 229 19521 112.78 884 865 165.4
C 3 233 238786 1191.35 866 876 199.7
C 14 238 141762 705.49 866 876 199.7
C 13 61 5944 25.38 866 876 199.7
D 12 233 1972894 10122.72 814 795 194.8
D 8 195 632952 3244.84 814 795 194.8
D 2 250 380211 1947.53 814 795 194.8

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