ASTROSAT CZTI

Data Quality Report

Orbit 14837

Creation date: 2024-06-27T17:00:12.894676
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/AS1C03_005T02_9000002192_14837cztM0_level2.evt modeM0/AS1C03_005T02_9000002192_14837cztM0_level2_quad_clean.evt
Size (bytes)466,439,040101,473,920
Size444.8 MB 96.8 MB
Events in quadrant A3,202,298671,667
Events in quadrant B3,487,565668,529
Events in quadrant C3,268,249654,337
Events in quadrant D3,742,238640,903

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0133272
B0142411
C0133381
D0152401

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01260
B01260
C01260
D01260

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6278600.955718%
B6278811.290220%
C6278280.446002%
D62781782.835298%

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 7584 6280 4 4 0.05% 0.06%
B 7584 6280 25 25 0.33% 0.40%
C 7584 6280 0 0 0.00% 0.00%
D 7584 6280 116 116 1.53% 1.85%

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 12 189 63903 396.83 806 790 159.0
A 9 143 26610 162.35 806 790 159.0
A 13 248 11384 66.61 806 790 159.0
B 3 64 135592 915.78 792 774 147.2
B 0 189 56670 379.68 792 774 147.2
B 0 245 52357 350.39 792 774 147.2
C 3 233 254695 1453.87 767 769 174.7
C 8 128 9969 52.67 767 769 174.7
C 7 220 7387 37.89 767 769 174.7
D 7 254 323457 1685.71 767 747 191.4
D 13 104 245322 1277.56 767 747 191.4
D 2 120 99766 517.24 767 747 191.4

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