ASTROSAT CZTI

Data Quality Report

Orbit 29049

Creation date: 2024-06-27T19:59:39.293319
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/AS1C05_019T04_9000004162_29049cztM0_level2.evt modeM0/AS1C05_019T04_9000004162_29049cztM0_level2_quad_clean.evt
Size (bytes)492,048,00094,870,080
Size469.3 MB 90.5 MB
Events in quadrant A3,299,516614,639
Events in quadrant B3,420,133624,072
Events in quadrant C3,378,523606,923
Events in quadrant D4,375,387587,042

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01300
B01300
C01300
D01300

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0142162
B0144132
C0143052
D0173924

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A6305570.904044%
B6306931.474786%
C63061201.902950%
D63051051.665345%

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 7535 6305 0 0 0.00% 0.00%
B 7536 6306 7 7 0.09% 0.11%
C 7536 6306 0 0 0.00% 0.00%
D 7535 6305 37 37 0.49% 0.59%

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 15 174 43565 255.09 841 823 167.6
A 13 254 10803 59.56 841 823 167.6
A 3 137 7348 38.94 841 823 167.6
B 10 245 126780 822.04 835 817 153.2
B 12 111 17864 111.25 835 817 153.2
B 11 111 16435 101.92 835 817 153.2
C 14 238 133976 708.91 819 827 187.8
C 3 233 26790 138.23 819 827 187.8
C 2 114 15663 78.99 819 827 187.8
D 8 195 866253 4464.17 822 802 193.9
D 1 52 218219 1121.48 822 802 193.9
D 2 250 101099 517.35 822 802 193.9

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