ASTROSAT CZTI

Data Quality Report

Orbit 30609

Creation date: 2024-06-27T20:17:38.579214
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_021T09_9000004410_30609cztM0_level2.evt modeM0/AS1A10_021T09_9000004410_30609cztM0_level2_quad_clean.evt
Size (bytes)689,247,36078,960,960
Size657.3 MB 75.3 MB
Events in quadrant A3,704,450510,541
Events in quadrant B5,230,932511,808
Events in quadrant C3,678,674486,764
Events in quadrant D7,810,003416,761

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0152312
B0202632
C0148802
D0280452

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A090
B090
C090
D090

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01360
B01360
C01360
D01360

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A66641241.860744%
B6665821.230308%
C66651281.920480%
D666589913.488372%

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 7554 6665 63 63 0.83% 0.95%
B 7555 6666 6 6 0.08% 0.09%
C 7555 6666 31 31 0.41% 0.47%
D 7555 6666 709 709 9.38% 10.64%

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 13 542376 3286.13 814 798 164.8
A 8 192 14028 80.28 814 798 164.8
A 13 254 12442 70.65 814 798 164.8
B 6 159 1925527 12412.29 810 791 155.1
B 0 229 74886 477.82 810 791 155.1
B 0 190 27629 173.07 810 791 155.1
C 15 208 375582 2056.76 774 778 182.2
C 14 238 124108 676.78 774 778 182.2
C 0 10 91129 495.81 774 778 182.2
D 8 195 3073998 17738.7 728 708 173.3
D 12 218 1376006 7938.07 728 708 173.3
D 13 249 190853 1097.5 728 708 173.3

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