ASTROSAT CZTI

Data Quality Report

Orbit 28215

Creation date: 2024-06-27T19:49:16.263778
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/AS1A10_045T09_9000004072_28215cztM0_level2.evt modeM0/AS1A10_045T09_9000004072_28215cztM0_level2_quad_clean.evt
Size (bytes)524,583,36094,360,320
Size500.3 MB 90.0 MB
Events in quadrant A3,252,519606,919
Events in quadrant B3,289,339621,441
Events in quadrant C3,259,395589,638
Events in quadrant D5,614,535555,602

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142520
B0142990
C0142490
D0213750

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A050
B050
C050
D050

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6949410.590013%
B6949690.992949%
C6948841.208981%
D69483525.066206%

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 7409 6950 0 0 0.00% 0.00%
B 7409 6950 0 0 0.00% 0.00%
C 7408 6949 0 0 0.00% 0.00%
D 7408 6949 332 332 4.48% 4.78%

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 10540 56.77 838 820 171.2
A 12 96 8661 45.79 838 820 171.2
A 3 137 8424 44.41 838 820 171.2
B 12 111 20314 121.53 831 808 160.5
B 11 111 18552 110.55 831 808 160.5
B 14 111 17623 104.76 831 808 160.5
C 14 238 128111 670.99 799 802 189.7
C 3 233 12959 64.07 799 802 189.7
C 13 61 5476 24.63 799 802 189.7
D 1 52 1868327 9742.96 790 769 191.7
D 7 80 521692 2717.63 790 769 191.7
D 5 222 117739 610.23 790 769 191.7

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