ASTROSAT CZTI

Data Quality Report

Orbit 34132

Creation date: 2024-06-27T20:56:50.436983
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_097T08_9000004874_34132cztM0_level2.evt modeM0/AS1A11_097T08_9000004874_34132cztM0_level2_quad_clean.evt
Size (bytes)452,949,12083,082,240
Size432.0 MB 79.2 MB
Events in quadrant A2,587,451544,441
Events in quadrant B3,025,250565,864
Events in quadrant C3,404,793535,356
Events in quadrant D4,335,879494,377

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0330
B0330
C0330
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0109033
B0122592
C0133242
D0166522

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01100
B01100
C01100
D01100

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A536690.167723%
B5366621.155423%
C53661252.329482%
D53661853.447633%

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 7400 5367 0 0 0.00% 0.00%
B 7400 5367 39 39 0.53% 0.73%
C 7400 5367 98 98 1.32% 1.83%
D 7400 5367 166 166 2.24% 3.09%

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 20185 148.56 661 649 131.5
A 13 6 12494 90.07 661 649 131.5
A 13 254 9709 68.89 661 649 131.5
B 5 172 185671 1494.49 663 648 123.8
B 0 219 59661 476.67 663 648 123.8
B 15 185 57029 455.41 663 648 123.8
C 0 10 598916 4082.64 636 643 146.5
C 15 214 233659 1590.11 636 643 146.5
C 14 254 62990 425.46 636 643 146.5
D 8 195 701758 4547.46 627 612 154.2
D 14 52 439566 2846.95 627 612 154.2
D 2 250 360042 2331.17 627 612 154.2

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