ASTROSAT CZTI

Data Quality Report

Orbit 34008

Creation date: 2024-06-27T20:55:19.671138
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/AS1A11_106T03_9000004864_34008cztM0_level2.evt modeM0/AS1A11_106T03_9000004864_34008cztM0_level2_quad_clean.evt
Size (bytes)556,542,72090,138,240
Size530.8 MB 86.0 MB
Events in quadrant A2,743,074598,685
Events in quadrant B3,662,595590,976
Events in quadrant C4,178,980580,497
Events in quadrant D5,866,226542,617

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0270
B0270
C0270
D0270

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0121163
B0148322
C0161242
D0215272

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01220
B01220
C01220
D01220

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A597080.134003%
B59701582.646566%
C59702784.656616%
D59705389.011725%

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 8626 5972 0 0 0.00% 0.00%
B 8626 5972 120 120 1.39% 2.01%
C 8626 5972 231 231 2.68% 3.87%
D 8626 5972 495 495 5.74% 8.29%

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 10 83 18826 129.41 696 681 140.2
A 14 235 17167 117.58 696 681 140.2
A 13 6 14778 100.54 696 681 140.2
B 5 172 489092 3713.66 684 666 131.5
B 0 189 164532 1245.93 684 666 131.5
B 0 219 55580 417.53 684 666 131.5
C 4 254 793449 5185.77 661 665 152.9
C 3 233 325636 2125.7 661 665 152.9
C 15 214 254497 1660.37 661 665 152.9
D 8 195 1283434 7782.35 649 634 164.8
D 12 233 418736 2536.49 649 634 164.8
D 12 6 409933 2483.09 649 634 164.8

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