ASTROSAT CZTI

Data Quality Report

Orbit 23060

Creation date: 2024-06-27T18:49:14.038834
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/AS1A07_049T01_9000003408_23060cztM0_level2.evt modeM0/AS1A07_049T01_9000003408_23060cztM0_level2_quad_clean.evt
Size (bytes)488,986,56070,980,480
Size466.3 MB 67.7 MB
Events in quadrant A2,986,228441,294
Events in quadrant B4,848,014435,406
Events in quadrant C3,098,577433,275
Events in quadrant D3,463,514414,969

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0125751
B0182161
C0128151
D0142391

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0110
B0110
C0110
D0110

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6071530.873003%
B607272811.989460%
C60721071.762187%
D60721262.075099%

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 7196 6072 0 0 0.00% 0.00%
B 7197 6073 485 485 6.74% 7.99%
C 7197 6073 4 4 0.06% 0.07%
D 7197 6073 81 81 1.13% 1.33%

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 13 254 9194 54.4 774 759 155.0
A 3 137 6718 38.44 774 759 155.0
A 0 226 6561 37.42 774 759 155.0
B 3 64 1853483 13041.39 744 726 142.1
B 0 189 39525 273.1 744 726 142.1
B 4 216 27412 187.84 744 726 142.1
C 14 238 119050 681.43 745 753 173.6
C 0 10 29394 164.98 745 753 173.6
C 10 22 18925 104.68 745 753 173.6
D 1 52 521279 2862.44 747 725 181.9
D 13 153 58701 318.8 747 725 181.9
D 13 174 35010 188.53 747 725 181.9

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