ASTROSAT CZTI

Data Quality Report

Orbit 16278

Creation date: 2024-06-27T17:20:16.295508
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/AS1A05_072T05_9000002394_16278cztM0_level2.evt modeM0/AS1A05_072T05_9000002394_16278cztM0_level2_quad_clean.evt
Size (bytes)492,154,56094,210,560
Size469.4 MB 89.8 MB
Events in quadrant A3,731,727585,715
Events in quadrant B3,570,715603,428
Events in quadrant C3,428,727588,744
Events in quadrant D3,686,522575,487

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01460
B01460
C01460
D01460

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0180
B0180
C0180
D0180

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0157723
B0152312
C0148062
D0159472

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A7180901.253482%
B7180490.682451%
C7180520.724234%
D7180781.086351%

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 8911 7183 41 41 0.46% 0.57%
B 8911 7183 3 3 0.03% 0.04%
C 8911 7183 0 0 0.00% 0.00%
D 8911 7183 44 44 0.49% 0.61%

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 15 174 452569 2635.71 849 829 171.4
A 9 143 12909 70.48 849 829 171.4
A 0 226 7401 38.34 849 829 171.4
B 4 216 59686 353.89 860 836 166.3
B 0 189 48310 285.48 860 836 166.3
B 0 198 45031 265.76 860 836 166.3
C 14 238 124765 644.82 823 829 192.2
C 3 233 65697 337.5 823 829 192.2
C 0 207 29456 148.94 823 829 192.2
D 1 52 423383 2088.46 829 805 202.3
D 10 70 97014 475.48 829 805 202.3
D 2 234 27392 131.4 829 805 202.3

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