ASTROSAT CZTI

Data Quality Report

Orbit 28046

Creation date: 2024-06-27T19:47:27.632753
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_045T03_9000004052_28046cztM0_level2.evt modeM0/AS1A10_045T03_9000004052_28046cztM0_level2_quad_clean.evt
Size (bytes)1,554,143,040262,869,120
Size1.4 GB 250.7 MB
Events in quadrant A8,578,5211,737,205
Events in quadrant B8,846,0171,738,784
Events in quadrant C9,177,0761,665,972
Events in quadrant D19,218,9851,545,920

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0377480
B0384820
C0392990
D0698770

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0170

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A18483870.470703%
B184841480.800692%
C184842531.368751%
D18484259514.039169%

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 20203 18486 0 0 0.00% 0.00%
B 20204 18485 39 39 0.19% 0.21%
C 20204 18486 2 2 0.01% 0.01%
D 20204 18485 2312 2312 11.44% 12.51%

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 35811 76.08 2210 2167 442.2
A 13 254 31889 67.21 2210 2167 442.2
A 3 137 21513 43.75 2210 2167 442.2
B 10 245 132873 318.41 2184 2132 410.6
B 4 200 53074 124.07 2184 2132 410.6
B 12 111 52159 121.84 2184 2132 410.6
C 3 233 581032 1180.62 2110 2123 490.3
C 14 238 337883 684.75 2110 2123 490.3
C 15 208 33596 64.19 2110 2123 490.3
D 8 195 4426025 9199.51 2018 1966 480.9
D 1 52 4411182 9168.65 2018 1966 480.9
D 7 69 1248759 2592.62 2018 1966 480.9

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