ASTROSAT CZTI

Data Quality Report

Orbit 04155

Creation date: 2024-06-27T14:38:09.572161
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/AS1G05_240T01_9000000536_04155cztM0_level2.evt modeM0/AS1G05_240T01_9000000536_04155cztM0_level2_quad_clean.evt
Size (bytes)449,216,64058,046,400
Size428.4 MB 55.4 MB
Events in quadrant A3,559,092335,044
Events in quadrant B3,509,645337,050
Events in quadrant C2,989,339327,429
Events in quadrant D3,117,395317,106

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0150
B0150
C0150
D0160

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0145483
B0142822
C0130862
D0136332

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A63221692.673205%
B63221552.451756%
C6322460.727618%
D6322701.107245%

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 7547 6323 23 23 0.30% 0.36%
B 7547 6323 31 31 0.41% 0.49%
C 7547 6323 0 0 0.00% 0.00%
D 7547 6323 21 21 0.28% 0.33%

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 0 199 226521 1408.16 791 775 160.3
A 14 111 99017 612.82 791 775 160.3
A 0 50 66425 409.51 791 775 160.3
B 10 16 258384 1676.56 801 784 153.6
B 14 167 70714 455.13 801 784 153.6
B 0 183 28289 179.01 801 784 153.6
C 13 61 6308 31.37 762 767 176.7
C 8 128 3970 18.13 762 767 176.7
C 8 222 2835 11.71 762 767 176.7
D 12 233 84873 459.45 761 739 183.1
D 10 172 72047 389.41 761 739 183.1
D 2 14 29549 157.33 761 739 183.1

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