d 
ert. 
15 cm 
30 cm 
ter, except 
ld to +3 cm 
  
- 66 = 
  
  
Ground Control Points 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
Country | Org 5.1 5.218 5.21b 5.21c 5.22 5.23 
Noo 
femme 
6 4 Yes No . No Yes 2nd order 
7 3 ho- | Yes Yes Yes Yes Field horiz.: 1/10 000 
riz. Slotted | Wild A7, Vertical 1/10 cont.inter. 
4 vert. templa- ca, AAT 1/10 000 H 
te AAT-ste- Vertic. 1/8 000 H 
reocomp. , 
IBM 
8 6 + 
AAT-12 | No No Yes Yes — 0,2 mm (M) 
9 5 Yes No Yes Yes Verto= 1/10 cont.l.inter. 
10 J| 3 ho- | Yes No Yes Yes | Modified 2" order (1:10 000) 
rize 
6 vert. 
11 3 ho- Yes No Yes Yes Horize pu order for AAT 
rie. rà ; 
6 Joni = order for plotting 
Vert. = 1/10 cont.l.inter. 
12 4 vert.) Yes No Yes Yes For 2"* order triangul. aver. tr. 
closure 1,5 seconds. 
Closure in lenght 1/20 000. 
fi 
2 order traverse: 
clos.er. after azim.adj. 
1,67°VD or 1:10 000 
Vertical: - 1/10 cont.l.inter. 
13 H2 no- [Yes Yes Yes Yes "National Standards" 
| | rízs 
i it 4 vert. 
14 4 ho- | Yes No AAT for Yes Basic control 
riz. | (Basic suppl. 
H Rural area Urban a. 
5 vert. contr.) past hor. 1/5000 1/10 000 
cints. vert. 0,05 ŸM 0,035! VM 
P (M=lenght of circuit in miles) 
AAT: horiz. 1/200 M vert. 1/400