ASTROSAT CZTI

Data Quality Report

Orbit 13783

Creation date: 2024-06-27T16:46:03.448267
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/AS1A04_199T01_9000002040_13783cztM0_level2.evt modeM0/AS1A04_199T01_9000002040_13783cztM0_level2_quad_clean.evt
Size (bytes)605,263,680103,000,320
Size577.2 MB 98.2 MB
Events in quadrant A4,299,915635,266
Events in quadrant B4,416,037642,942
Events in quadrant C4,201,692633,206
Events in quadrant D4,831,723613,224

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0100
B0100
C0100
D0100

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01760
B01760
C01760
D01760

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0181774
B0184593
C0179383
D0198163

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A85593574.171048%
B85594004.673443%
C85592693.142891%
D85593323.878958%

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 9595 8561 0 0 0.00% 0.00%
B 9595 8562 9 9 0.09% 0.11%
C 9595 8562 0 0 0.00% 0.00%
D 9595 8563 50 50 0.52% 0.58%

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 23 62969 281.79 1071 1042 219.8
A 8 15 40485 179.48 1071 1042 219.8
A 9 143 26622 116.4 1071 1042 219.8
B 0 219 89059 426.98 1069 1038 206.1
B 8 250 34764 163.6 1069 1038 206.1
B 3 64 34278 161.24 1069 1038 206.1
C 3 233 106787 431.25 1049 1052 245.2
C 13 61 7353 25.7 1049 1052 245.2
C 0 207 5016 16.17 1049 1052 245.2
D 1 52 504165 1827.43 1032 1010 275.3
D 5 222 144866 522.48 1032 1010 275.3
D 13 249 59753 213.35 1032 1010 275.3

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