ASTROSAT CZTI

Data Quality Report

Orbit 25589

Creation date: 2024-06-27T19:19:16.859519
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/AS1A09_043T02_9000003726_25589cztM0_level2.evt modeM0/AS1A09_043T02_9000003726_25589cztM0_level2_quad_clean.evt
Size (bytes)511,168,32080,763,840
Size487.5 MB 77.0 MB
Events in quadrant A3,830,812502,795
Events in quadrant B3,465,425535,125
Events in quadrant C3,357,501489,055
Events in quadrant D4,393,037471,916

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0151870
B0141290
C0137680
D0173840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0160
C0160
D0160

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A64022584.029991%
B6402500.781006%
C6402911.421431%
D64021021.593252%

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 7597 6403 180 180 2.37% 2.81%
B 7597 6403 3 3 0.04% 0.05%
C 7597 6403 13 13 0.17% 0.20%
D 7597 6403 72 72 0.95% 1.12%

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 8 192 565319 3342.68 844 828 168.9
A 6 16 15649 87.76 844 828 168.9
A 13 254 10328 56.25 844 828 168.9
B 0 219 36744 224.53 858 839 159.9
B 0 190 35715 218.09 858 839 159.9
B 0 245 19952 119.52 858 839 159.9
C 14 238 131461 698.58 804 809 187.0
C 3 233 35208 183.93 804 809 187.0
C 0 207 33206 173.22 804 809 187.0
D 8 195 609807 3072.06 809 788 198.2
D 1 52 587099 2957.51 809 788 198.2
D 2 244 56533 281.19 809 788 198.2

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