ASTROSAT CZTI

Data Quality Report

Orbit 20151105_P01_014T06_9000000078_level2

Creation date: 2025-01-04T21:08:57.456023
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/AS1P01_014T06_9000000078cztM0_level2.fits modeM0/AS1P01_014T06_9000000078cztM0_level2_quad_clean.evt
Size (bytes)179,012,160197,691,840
Size170.7 MB 188.5 MB
Events in quadrant A1,019,4841,167,681
Events in quadrant B1,019,8261,183,818
Events in quadrant C1,010,7421,122,610
Events in quadrant D848,744990,221

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A04540
B04540
C04540
D04540

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0962120
B0952940
C0864120
D01018950

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A221161910.863628%
B22116430.194429%
C2211690.040695%
D221165122.315066%

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 35051 22115 0 0 0.00% 0.00%
B 35051 22116 0 0 0.00% 0.00%
C 35051 22116 0 0 0.00% 0.00%
D 35051 22115 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 7 110 952 11.03 265 248 63.8
A 0 29 914 10.43 265 248 63.8
A 9 239 722 7.43 265 248 63.8
B 2 9 895 13.23 269 257 48.2
B 14 254 719 9.58 269 257 48.2
B 2 18 659 8.34 269 257 48.2
C 12 241 717 7.02 267 247 66.9
C 2 191 704 6.83 267 247 66.9
C 3 187 655 6.09 267 247 66.9
D 6 231 648 7.11 243 223 59.8
D 6 44 633 6.86 243 223 59.8
D 11 82 622 6.67 243 223 59.8

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