ASTROSAT CZTI

Data Quality Report

Orbit 30174

Creation date: 2024-06-27T20:11:50.483306
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_102T01_9000004340_30174cztM0_level2.evt modeM0/AS1A10_102T01_9000004340_30174cztM0_level2_quad_clean.evt
Size (bytes)858,594,240105,160,320
Size818.8 MB 100.3 MB
Events in quadrant A4,886,355665,796
Events in quadrant B6,716,719665,718
Events in quadrant C7,664,525624,223
Events in quadrant D6,137,190613,394

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01840
B01840
C01840
D01840

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0201132
B0267622
C0289102
D0241672

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A88552032.292490%
B88552262.552230%
C88556847.724449%
D88556016.787126%

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 10165 8855 64 64 0.63% 0.72%
B 10165 8855 1 1 0.01% 0.01%
C 10165 8856 44 44 0.43% 0.50%
D 10165 8855 444 444 4.37% 5.01%

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 620755 2789.68 1100 1074 222.1
A 8 192 22121 94.75 1100 1074 222.1
A 13 254 14187 59.03 1100 1074 222.1
B 6 159 2437562 11494.81 1085 1054 212.0
B 12 111 27072 122.75 1085 1054 212.0
B 11 111 25224 114.03 1085 1054 212.0
C 3 233 3329876 13471.62 1043 1048 247.1
C 14 238 187095 752.92 1043 1048 247.1
C 15 208 33048 129.5 1043 1048 247.1
D 1 52 1991490 7954.59 1042 1017 250.2
D 8 195 162308 644.57 1042 1017 250.2
D 2 234 35435 137.55 1042 1017 250.2

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