ASTROSAT CZTI

Data Quality Report

Orbit 14610

Creation date: 2024-06-27T16:57:29.467707
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/AS1A04_016T01_9000002152_14610cztM0_level2.evt modeM0/AS1A04_016T01_9000002152_14610cztM0_level2_quad_clean.evt
Size (bytes)123,428,16023,958,720
Size117.7 MB 22.8 MB
Events in quadrant A789,845153,012
Events in quadrant B792,445155,034
Events in quadrant C1,034,937151,911
Events in quadrant D1,011,682149,501

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0340
B0340
C0340
D0340

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A033472
B034041
C043441
D040871

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A030
B030
C030
D030

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A1560905.769231%
B1560986.282051%
C1560885.641026%
D156019212.307692%

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 1876 1562 0 0 0.00% 0.00%
B 1876 1561 1 1 0.05% 0.06%
C 1876 1562 0 0 0.00% 0.00%
D 1875 1561 70 70 3.73% 4.48%

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 8 15 24590 592.76 191 187 41.2
A 1 162 14357 344.2 191 187 41.2
A 1 178 4359 101.34 191 187 41.2
B 10 246 16990 428.0 188 182 39.3
B 15 201 13439 337.58 188 182 39.3
B 0 189 10219 255.59 188 182 39.3
C 3 233 321737 7119.52 182 183 45.2
C 13 61 1337 25.55 182 183 45.2
C 3 232 991 17.89 182 183 45.2
D 10 70 266222 5988.79 178 173 44.4
D 10 199 64824 1455.3 178 173 44.4
D 2 234 5038 109.51 178 173 44.4

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