ASTROSAT CZTI

Data Quality Report

Orbit 30587

Creation date: 2024-06-27T20:17:20.982275
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_103T02_9000004406_30587cztM0_level2.evt modeM0/AS1A10_103T02_9000004406_30587cztM0_level2_quad_clean.evt
Size (bytes)556,058,88090,120,960
Size530.3 MB 85.9 MB
Events in quadrant A3,252,075598,874
Events in quadrant B5,204,296593,304
Events in quadrant C3,524,762560,072
Events in quadrant D4,446,867551,440

Level1 data integrity


Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120
B0120
C0120
D0120

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01240
B01240
C01240
D01240

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0132941
B0193831
C0141941
D0174721

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A60911171.920867%
B60922874.711097%
C60923595.892974%
D60921322.166776%

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 7326 6092 0 0 0.00% 0.00%
B 7327 6093 44 44 0.60% 0.72%
C 7327 6093 73 73 1.00% 1.20%
D 7327 6093 21 21 0.29% 0.34%

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 12 96 24893 147.57 833 819 163.1
A 13 254 11503 65.49 833 819 163.1
A 8 192 11441 65.11 833 819 163.1
B 6 159 1682395 11259.27 813 796 149.4
B 5 255 172122 1147.13 813 796 149.4
B 0 229 116152 772.37 813 796 149.4
C 14 238 173903 984.94 768 774 175.8
C 0 10 173047 980.07 768 774 175.8
C 15 208 63795 358.53 768 774 175.8
D 8 195 906265 4938.69 791 773 183.3
D 5 222 202898 1102.42 791 773 183.3
D 13 104 176631 959.16 791 773 183.3

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