ASTROSAT CZTI

Data Quality Report

Orbit 24294

Creation date: 2024-06-27T19:04:28.029564
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/AS1A07_027T10_9000003592_24294cztM0_level2.evt modeM0/AS1A07_027T10_9000003592_24294cztM0_level2_quad_clean.evt
Size (bytes)706,360,32089,893,440
Size673.6 MB 85.7 MB
Events in quadrant A3,830,176555,728
Events in quadrant B3,875,423566,643
Events in quadrant C4,552,972540,105
Events in quadrant D8,603,152514,434

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01620
B01620
C01620
D01620

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A040
B050
C050
D050

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0163042
B0163492
C0183482
D0309582

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A78513224.101388%
B78513334.241498%
C78513995.082155%
D785197212.380588%

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 8106 7851 0 0 0.00% 0.00%
B 8106 7851 1 1 0.01% 0.01%
C 8106 7852 0 0 0.00% 0.00%
D 8106 7851 587 587 7.24% 7.48%

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 13 254 11552 52.21 993 971 202.6
A 3 137 9277 40.99 993 971 202.6
A 0 226 8565 37.47 993 971 202.6
B 12 111 23946 118.98 985 957 193.2
B 11 111 21617 106.93 985 957 193.2
B 14 111 18841 92.56 985 957 193.2
C 7 247 678008 3055.67 945 948 221.6
C 14 238 149434 670.14 945 948 221.6
C 2 16 17317 73.88 945 948 221.6
D 1 52 4208791 18263.68 937 909 230.4
D 8 195 525553 2277.14 937 909 230.4
D 12 233 176998 764.29 937 909 230.4

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