ASTROSAT CZTI

Data Quality Report

Orbit 05833

Creation date: 2024-06-27T14:59:40.581265
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/AS1G06_052T01_9000000754_05833cztM0_level2.evt modeM0/AS1G06_052T01_9000000754_05833cztM0_level2_quad_clean.evt
Size (bytes)403,315,20083,422,080
Size384.6 MB 79.6 MB
Events in quadrant A3,147,231525,262
Events in quadrant B2,978,872540,870
Events in quadrant C2,707,956528,936
Events in quadrant D2,961,390501,416

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0136742
B0128211
C0125121
D0132221

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61531312.129043%
B6153631.023891%
C6153290.471315%
D6153590.958882%

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 7423 6154 71 71 0.96% 1.15%
B 7423 6154 1 1 0.01% 0.02%
C 7423 6154 0 0 0.00% 0.00%
D 7423 6154 29 29 0.39% 0.47%

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 15 236 365660 2520.21 710 694 144.8
A 15 223 28865 194.53 710 694 144.8
A 15 234 19546 130.18 710 694 144.8
B 15 204 121961 891.4 726 710 136.0
B 0 219 19004 134.49 726 710 136.0
B 4 48 13619 94.9 726 710 136.0
C 14 67 9697 56.62 690 694 159.0
C 13 61 5697 31.46 690 694 159.0
C 1 16 4589 24.49 690 694 159.0
D 11 241 150901 908.93 683 661 165.3
D 2 152 148255 892.92 683 661 165.3
D 7 55 48494 289.38 683 661 165.3

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