ASTROSAT CZTI

Data Quality Report

Orbit 28068

Creation date: 2024-06-27T19:47:41.105540
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_057T02_9000004054_28068cztM0_level2.evt modeM0/AS1A10_057T02_9000004054_28068cztM0_level2_quad_clean.evt
Size (bytes)667,673,28069,480,000
Size636.7 MB 66.3 MB
Events in quadrant A3,374,683439,758
Events in quadrant B7,001,998410,931
Events in quadrant C4,264,261413,286
Events in quadrant D5,162,825409,093

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0130
B0130
C0130
D0130

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0135640
B0249130
C0167600
D0197780

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A61701051.701783%
B6171158625.700859%
C61701923.111831%
D61703946.385737%

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 7435 6170 0 0 0.00% 0.00%
B 7436 6171 1099 1099 14.78% 17.81%
C 7435 6170 4 4 0.05% 0.06%
D 7434 6169 286 286 3.85% 4.64%

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 0 13 87954 517.28 851 837 168.4
A 13 254 10747 58.84 851 837 168.4
A 3 137 7546 39.84 851 837 168.4
B 10 245 3932155 27924.2 762 745 140.8
B 4 52 19876 135.88 762 745 140.8
B 0 229 18913 129.04 762 745 140.8
C 3 233 1018738 5577.12 798 802 182.5
C 14 238 132598 722.09 798 802 182.5
C 13 61 5510 25.79 798 802 182.5
D 1 52 825204 4291.07 808 787 192.1
D 8 195 790528 4110.58 808 787 192.1
D 2 250 322970 1676.96 808 787 192.1

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