ASTROSAT CZTI

Data Quality Report

Orbit 29949

Creation date: 2024-06-27T20:09:06.538714
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_058T01_9000004298_29949cztM0_level2.evt modeM0/AS1A10_058T01_9000004298_29949cztM0_level2_quad_clean.evt
Size (bytes)575,925,12098,127,360
Size549.2 MB 93.6 MB
Events in quadrant A3,506,099658,947
Events in quadrant B5,571,931646,666
Events in quadrant C3,863,505609,746
Events in quadrant D4,068,825611,117

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142471
B0206291
C0158162
D0166681

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6378931.458137%
B63782303.606146%
C63782373.715898%
D6378831.301348%

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 7687 6378 0 0 0.00% 0.00%
B 7687 6378 71 71 0.92% 1.11%
C 7688 6379 0 0 0.00% 0.00%
D 7688 6379 20 20 0.26% 0.31%

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 12458 65.54 905 890 176.5
A 8 192 10928 56.87 905 890 176.5
A 0 226 7993 40.24 905 890 176.5
B 6 159 1786526 11115.23 870 852 160.7
B 3 64 357469 2219.82 870 852 160.7
B 12 111 18222 108.12 870 852 160.7
C 3 233 349583 1818.26 839 847 191.8
C 14 238 169307 878.33 839 847 191.8
C 14 254 41218 210.49 839 847 191.8
D 8 195 537128 2654.17 874 854 202.0
D 2 250 41835 202.83 874 854 202.0
D 1 52 39547 191.5 874 854 202.0

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