ASTROSAT CZTI

Data Quality Report

Orbit 20190105_T03_040T01_9000002628_level2

Creation date: 2024-11-14T17:27:17.851417
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/AS1T03_040T01_9000002628cztM0_level2.fits modeM0/AS1T03_040T01_9000002628cztM0_level2_quad_clean.evt
Size (bytes)653,028,480600,382,080
Size622.8 MB 572.6 MB
Events in quadrant A4,019,6083,565,513
Events in quadrant B3,862,5523,587,290
Events in quadrant C3,925,8503,422,101
Events in quadrant D3,219,9242,861,932

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A014160
B014160
C014160
D014160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01454020
B01521500
C01458130
D02177470

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01070
B01070
C01070
D01070

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6917410861.569954%
B6917413351.929916%
C6917411221.621997%
D69174805711.647440%

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 80205 69174 0 0 0.00% 0.00%
B 80205 69170 0 0 0.00% 0.00%
C 80205 69172 0 0 0.00% 0.00%
D 80205 68942 0 0 0.00% 0.00%

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 29 3814 10.76 1045 975 264.0
A 7 110 3207 8.46 1045 975 264.0
A 0 30 3103 8.06 1045 975 264.0
B 2 9 3220 11.36 1019 972 197.9
B 2 8 2627 8.36 1019 972 197.9
B 14 254 2548 7.96 1019 972 197.9
C 1 80 2967 7.55 1036 966 265.1
C 1 81 2880 7.22 1036 966 265.1
C 12 241 2788 6.87 1036 966 265.1
D 3 14 2416 6.39 919 836 247.0
D 15 46 2279 5.84 919 836 247.0
D 6 67 2279 5.84 919 836 247.0

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