ASTROSAT CZTI

Data Quality Report

Orbit 30290

Creation date: 2024-06-27T20:13:10.371409
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_007T01_9000004350_30290cztM0_level2.evt modeM0/AS1A10_007T01_9000004350_30290cztM0_level2_quad_clean.evt
Size (bytes)1,493,196,480214,064,640
Size1.4 GB 204.1 MB
Events in quadrant A8,691,0401,318,708
Events in quadrant B13,870,5531,325,953
Events in quadrant C9,842,4851,291,914
Events in quadrant D11,578,7241,280,181

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A03740
B03740
C03740
D03740

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0376723
B0554113
C0402623
D0461503

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A183712221.208426%
B183713501.905177%
C183706633.609145%
D183716073.304121%

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 20096 18372 0 0 0.00% 0.00%
B 20096 18371 1 1 0.00% 0.01%
C 20095 18370 0 0 0.00% 0.00%
D 20096 18373 383 383 1.91% 2.08%

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 32355 66.68 2241 2191 452.3
A 8 192 31621 65.06 2241 2191 452.3
A 3 137 23290 46.64 2241 2191 452.3
B 6 159 5124890 11959.79 2212 2150 428.3
B 12 111 54487 122.19 2212 2150 428.3
B 11 111 50381 112.6 2212 2150 428.3
C 3 233 815596 1622.1 2141 2153 501.5
C 14 238 456303 905.63 2141 2153 501.5
C 14 254 161787 318.33 2141 2153 501.5
D 2 250 1373967 2562.9 2163 2113 535.3
D 13 104 856493 1596.15 2163 2113 535.3
D 8 195 401337 745.83 2163 2113 535.3

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