ASTROSAT CZTI

Data Quality Report

Orbit 07102

Creation date: 2024-06-27T15:15:36.576842
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/AS1A02_090T01_9000000970_07102cztM0_level2.evt modeM0/AS1A02_090T01_9000000970_07102cztM0_level2_quad_clean.evt
Size (bytes)414,714,24084,516,480
Size395.5 MB 80.6 MB
Events in quadrant A2,749,883544,943
Events in quadrant B2,887,256552,175
Events in quadrant C2,791,783539,648
Events in quadrant D3,719,801500,658

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0123002
B0125601
C0123341
D0150181

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6035160.265120%
B6035190.314830%
C6035160.265120%
D60351712.833471%

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 7105 6036 0 0 0.00% 0.00%
B 7105 6035 1 1 0.01% 0.02%
C 7105 6036 3 3 0.04% 0.05%
D 7105 6036 116 116 1.63% 1.92%

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 0 226 6813 41.74 713 701 146.4
A 12 194 6332 38.45 713 701 146.4
A 8 15 2945 15.32 713 701 146.4
B 0 214 43452 308.37 722 705 138.6
B 0 219 33441 236.15 722 705 138.6
B 12 111 13440 91.87 722 705 138.6
C 9 68 24777 147.78 697 702 162.9
C 4 254 17236 101.49 697 702 162.9
C 8 128 11201 64.45 697 702 162.9
D 2 216 406480 2407.98 683 662 168.5
D 8 195 285503 1690.15 683 662 168.5
D 12 233 193420 1143.76 683 662 168.5

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